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Safety Recommendation Details

Safety Recommendation A-72-099
Details
Synopsis: DURING THE NATIONAL TRANSPORTATION SAFETY BOARD'S PUBLIC HEARING REGARDING THE MOHAWK AIRLINES ACCIDENT AT ALBANY, NEW YORK, AN AREA OF DISAGREEMENT DEVELOPED AS TO THE PROPER EMERGENCY PROCEDURES TO BE FOLLOWED UPON ENCOUNTERING A CRUISE PITCH LOCK WITHDRAWAL MALFUNCTION. PILOTS OPERATING THE FH-227B AIRCRAFT STATED THAT THEY DISAGREED WITH THE PUBLISHED PROCEDURES CONTAINED IN THE MOHAWK AIRLINES OPERATIONS MANUAL.
Recommendation: REVIEW AND EVALUATE THE PRESENT CRUISE PITCH LOCK EMERGENCY PROCEDURE. THE REVIEW SHOULD INCLUDE AN EVALUATION OF THE RECOMMENDED PROCEDURES SET FORTH BY THE ROLLS ROYCE COMPANY IN THEIR SERVICE BULLTIN NO. 61-10A TO ASCERTAIN IF THESE PROCEDURES ARE PREFERABLE TO THOSE NOW IN EFFECT.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Aviation
Location: Albany, NY, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA72AZ009
Accident Reports: Mohawk Airlines, Inc., Fairchild Hiller FH-227B, N7818M
Report #: AAR-73-08
Accident Date: 3/3/1972
Issue Date: 7/7/1972
Date Closed: 4/12/1973
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: FAA
Date: 7/12/1973
Response: Closed--acceptable action.

From: FAA
To: NTSB
Date: 3/14/1973
Response: 1. We have reviewed and evaluated the present cruise pitch lock emergency procedure including rolls royce service bulletin no. 61.10a.The approved flight manual procedures are considered satisfactory. These procedures are not mandatory, however, and do not prohibit an operator from developing and training personnel in alternate, equivalent procedures.2. We agree that operators should be aware of the potential hazards associating with operating an engine with the propeller hung on the informationin certificate holder's operations manuals we favor modification of initialand recurrent training programs to include it. This will apprise crews that airplane can be successfully handled in this configuration in various maneuvers including missed approaches, without damage to the engine. E. We plan to insert operations bulletins in faa handbooks 8430.1a and 8430.6a. Principal operations inspectors will be directed to revise operators initial and recurrent training programs which we believe will satisfy the intent of recommendations 2 and 3.

From: FAA
To: NTSB
Date: 7/7/1972
Response: THEY HAVE REVIEWED AND EVALUATED THE PRESENT CRUISE PITCH LOCK EMERGENCY PROCEDURE INCLUDING ROLLS ROYCE SERVICE BULLETIN NO. 61-10A. THE APPROVED FLIGHT MANUAL PROCEDURES ARE CONSIDERED SATISFACTORY. THESE PROCEDURES ARE NOT MANDATORY, HOWEVER, AND DO NOT PROHIBIT AN OPERATOR FROM DEVELOPING AND TRAINING PERSONNEL IN ALTERNATE, EQUIVALENT PROCEDURES. 3/14/73 - RESPONSE FROM THE FAA TO SAY THEY CONSIDER THE PRESENT APPROVED FLIGHT MANUAL PROCEDURES TO BE SATISFACTORY. HOWEVER, THEY PLAN TO INSERT OPERATIONS BULLETINS IN FAA HANDBOOKS 8430.1A AND 8430.6A. ADDITIONALLY, PRINCIPAL OPERATIONS INSPECTORS WILL BE DIRECTED TO REVISE THE OPERATORS INITIAL AND RECURRENT TRAINING PROGRAMS.