Section 81. Penalties. —

1. The Director General, after due notice and hearing, is authorized to impose the following fines and penalties for each violation of this Act:

   1. Any person who operates any aircraft without the current airworthiness certificate, in violation of any rule, regulation or order issued by the Director General relating to aeronautical safety standards or practices or procedures shall be punished by a fine ranging from Twenty thousand pesos (Php20,000.00) to Fifty thousand pesos (Php50,000.00) for the 1st offense, suspension of the license for three (3) months for the 2nd offense and revocation or cancellation of such license for the 3rd offense;

   2. Any person serving in any capacity as an airman in connection with any civil aircraft in violation of the terms, conditions or limitations of any such airman license or certificate, or in excess of the rating of such certificate, shall be punished by a fine ranging from Twenty thousand pesos (Php20,000.00) to Fifty thousand pesos (Php50,000.00) for the 1st offense, suspension of the license for three (3) months for the 2nd offense and revocation or cancellation of such license for the 3rd offense. The repetition of this offense shall be sufficient cause for the revocation of the airman's certificate;

   3. Any person who employs in connection with any aircraft used in air commerce an airman who does not have an airman's certificate authorizing him to serve in the capacity for which he is employed shall be punished by a fine ranging from Fifty thousand pesos (Php50,000.00) to One hundred thousand pesos (Php100,000.00), as determined by the Director General in the exercise of his reasonable discretion. A repetition of the offense shall be sufficient cause for revocation of such person's certificate authorizing it to engage in air carrier operation;

   4. Any person who was issued by the Director General relating to air carrier operation, aviation school, aircraft maintenance, and other civil aviation regulated activity which are being certificated and regulated by the Director General who have been found to have violated any term, condition or limitation thereof, or violates any order, rule or regulation issued by virtue of this Act relating to the holder of such certificate shall be punished by a fine ranging from Three hundred thousand pesos (Php300,000.00) to Five hundred thousand pesos (Php500,000.00), as determined by the Director General in the exercise of his reasonable discretion. The repetition of this offense shall be sufficient cause for the revocation of such person's certificate.

   5. No person shall interfere, obstruct, hinder, or delay the Director General or any person duly delegated by the Director General, in the performance of his duties pursuant to public interest. A fine ranging from Twenty thousand pesos (Php20,000.00) but not exceeding One hundred thousand pesos (Php100,000.00), as determined by the Director General in the exercise of his reasonable discretion, shall be imposed upon anyone who:

      1. With intent to interfere in the performance of the duties of the Director General or any person duly delegated by the Director General, shall knowingly or willfully alter, falsify, mutilate any report, accounts, records, books, papers, contracts, agreement and all other documents; or

      2. Shall knowingly and willfully fail or refuse: (a) to make and/or submit aircraft maintenance or flight logbooks, contracts, manuals, technical reports and all other documents required to be submitted by him for consideration before the Director General or his duly authorized representative; or (b) to keep or preserve records, reports, papers and all other documents required by the Director General or his duly authorized representative; or

      3. Is guilty of misconduct in the presence of the Director General or his duly authorized representative, or to any member of the Board in the performance of their quasi-judicial and quasi-legislative functions or so near as to obstruct or interrupt the hearing or session or any proceedings before the Director General or any of his duly authorized representative; or shall orally or in writing disrespectfully offend or insult any of the above-named bodies or persons on the occasion of or in the performance of their official duties or during any hearing, session, or investigation held by the Director General or his duly authorized representative; or

      4. Refuses to be sworn in as a witness or to answer as such when lawfully required to do so: Provided, That the Director General or his duly authorized representative shall, if necessary, be entitled to the assistance of law enforcement officials for the execution of any order to compel a witness to be present or to testify; or

      5. Neglects or refuses to attend and/or testify and/or to answer any lawful inquiry or to produce books, papers or documents, if in his power to do so, in obedience to the subpoena or lawful requirement of the Director General or his duly authorized representative; or

      6. Testifies falsely or makes false affidavits or both before the Director General or his duly authorized representative.

2. The following penalties may only be imposed by a court of competent jurisdiction after the filing of a proper criminal complaint therein by the Director General and a finding of guilt:

   1. Any person who operates any aircraft without a valid or current license or ratings or in violation of rule, regulation or order issued by the Director General relating to aeronautical safety standards or practices or procedures shall be punished by imprisonment for not more than three (3) years or a fine ranging from Fifty thousand pesos (Php50,000.00) but not exceeding Two hundred thousand pesos (Php200,000.00), or both, at the discretion of the court;

   2. Any person who knowingly and willfully forges, counterfeits, alters or falsifies any certificate or aviation certificate authorized to be issued pursuant to the provisions of this Act, or knowingly uses or attempts to use any such fraudulent certificate or aviation certificate, and any person who knowingly and willfully displays or causes to be displayed on any aircraft any marks that are false or misleading as to the nationality or registration of the aircraft shall be punished by imprisonment ranging from three (3) years to six (6) years or a fine of not less than One hundred thousand pesos (Php100,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court;

   3. Any person who shall use for flight operation an unregistered aircraft or engaged in the operation of aviation school, aircraft maintenance facilities, aircraft material distributorship, air carrier operations or any other civil aviation regulated activities without the required air agency certificate issued by the Director General shall be punished by imprisonment ranging from three (3) years to seven (7) years or a fine of not less than One hundred thousand pesos (Php100,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court;

   4. Any person found guilty of violating the conditions attendant to the issuance of the airworthiness certificate of the aircraft shall be subjected to imprisonment ranging from three (3) years to seven (7) years or a fine of not less than One hundred thousand pesos (Php100,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court;

   5. Any person who destroys or seriously damages the facilities of an airport or disrupts the services of an airport shall be subjected to imprisonment ranging from one (1) year to three (3) years or a fine of not less than Fifty thousand pesos (Php50,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court; and

   6. No person shall interfere with air navigation. An imprisonment for not more than three (3) years or a fine of not less than Fifty thousand pesos (Php50,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court, shall be imposed upon any person who:

      1. With intent to interfere with air navigation within the Philippines, exhibits within the Philippines any light or signal at such place or in such manner that it is likely to be mistaken for a true light or signal established pursuant to this Act or for a true light or signal in connection with an airport or other air navigation facility; or

      2. After due warning by the Director General, or his duly authorized representative, continues to maintain any misleading light or signal; or

      3. Knowingly removes, extinguishes, or interferes with the operation of any true light or signal;

   7. Any person who destroys or damages air navigation facilities or interferes with their operation shall be subjected to imprisonment from one (1) year to three (3) years or a fine of not less than Fifty thousand pesos (Php50,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court. If such act endangers the safety of air navigation, the court may impose an increased penalty of imprisonment from three (3) years to six (6) years or a fine ranging from Five hundred thousand pesos (Php500,000.00) to One million pesos (Php1,000,000.00) Convention for Suppression of Unlawful Acts Against the Safety of Civil Aviation, signed at Montreal, 23 September 1971, Art. 1 (d);

   8. Any person who, whether on board or on the ground, communicates false information to an aircraft and thereby endangering the safety of an aircraft in flight shall be subjected to imprisonment from one (1) year to three (3) years or a fine of not less than Fifty thousand pesos (Php50,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court. Convention for Suppression of Unlawful Acts Against the Safety of Civil Aviation, signed at Montreal, 23 September 1971, Art. 1 (e);

   9. Any person who, while on board an aircraft, interferes with a crewmember's or flight attendant's performance of their duties, assaults, intimidates, or threatens any crewmember or flight attendant, shall be subjected to imprisonment from one (1) year to three (3) years or a fine of not less than Fifty thousand pesos (Php50,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court;

   10. Any person who, while on board or while attempting to board, any aircraft in or intended for operation in commercial air transport, has, on or about his person or his property, a concealed deadly or dangerous weapon which is, or would be accessible to such person in flight, or any person who has on or about his person, or who has placed, or attempted to place aboard such aircraft any bomb or similar explosive or incendiary device, shall be subjected to imprisonment from three (3) years to six (6) years or a fine of not less than One hundred thousand pesos (Php100,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court.

       This subsection shall not apply to persons duly authorized by the Director General to carry deadly or dangerous weapons in commercial air transport nor shall it apply to other persons transporting weapons contained in baggage that is not accessible to passengers in flight if the presence of such weapons has been declared to the air carrier and duly approved by the proper authority;

   11. Any person who imparts or conveys or causes to be imparted or conveyed false information, knowing the information to be false, concerning an attempt or alleged attempt being made or to be made to do an act which would be a crime prohibited by clauses (8), (9) and (10) of this section, shall be subjected to imprisonment from one (1) year to three (3) years or a fine of not less than Fifty thousand pesos (Php50,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court. Convention for Suppression of Unlawful Acts Against the Safety of Civil Aviation, signed at Montreal, 23 September 1971, Art. 1 (e);

   12. Any person who, while on board an aircraft, commits any other act not otherwise expressly covered under clauses (8), (9), (10) and (11) above which jeopardizes the safety of the aircraft or of persons or property therein, or which jeopardizes good order and discipline on board such aircraft shall be subjected to imprisonment from six (6) months to three (3) years or a fine of not less than Fifty thousand pesos (Php50,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court. Convention on Offenses and Certain Other Acts Committed on Board Aircraft, signed at Tokyo, 14 September 1963, Art. 1 (b);

   13. Any person who knowingly and without authority removes, conceals or withholds any part of an aircraft involved in an aircraft accident or any property on board such aircraft at the time of the aircraft accident shall be subjected to imprisonment from three (3) years to six (6) years or a fine of not less than One hundred thousand pesos (Php100,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court; and

   14. Any person who willfully delivers or causes to be delivered to an air carrier for air transport, or if that person recklessly causes the transportation in air transport, of any shipment, cargo, baggage or other property in violation of the provisions of Annex 18 of the Chicago Convention and the ICAO Technical Instruction for the Safe Transport of Dangerous Goods by Air, or the corresponding rules and regulations issued by the Authority shall be subjected to imprisonment from one (1) year to three (3) years or a fine of not less than One hundred thousand pesos (Php100,000.00) but not exceeding Five hundred thousand pesos (Php500,000.00), or both, as determined by the court.

The provisions of paragraph (b), clauses (9), (10), (11) and (12) above shall apply to any aircraft located within the special jurisdiction of the Philippines. Exercise by the Director General of the powers granted to him under paragraph (a) above shall not be a bar to a subsequent criminal prosecution in court for the same act pursuant to the provisions of paragraph (b).