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20160925019609I

Incident · Minor damage
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FAA incident report · Dassault FALCON 2000 · Plymouth, MA · September 25, 2016

FAA Aviation Safety Information Portal

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Date
September 25, 2016 · 16:10 local
Place
Plymouth, MA
Airport
Plymouth Municipal Airport
Phase of flight
Takeoff: Climb Out
Operating rules
General operating rules (Part 91)
Operator
ZKFA
Damage
Minor damage
Aircraft
N48MF
Reported as
Dassault Falcon 2000
Reported engine
C F E CFE-738-1-1B
People aboard
2
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Airline transport
Pilot’s flight hours
9,161 total854 in this make and model98 in the last 90 days
N48MFRegistered now · Dassault FALCON 2000S/N 115 · Built 2000Airframe modelDassault FALCON 2000Engine modelC F E CFE-738-1-1BTurbo-fan

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Access panel 170AB, a lower hinged access panel, departed the aircraft as it climbed through 10,000 feet. Maintenance access panel 170AB had previously been opened to perform an ocip block 5 inspection. Upon completion of the inspection, operational checks were completed in accordance with manufacturers instructions; however, the panel was only secured by the technician with 2 of 30, dzus 1/4 fasteners.

Prior to completion of the operational checks the aircraft had to be repositioned, so the panel was only secured with two of the fasteners and the technician did not return to complete the installation of the remaining fasteners once the operational checks were completed.

The final return to service statement was made on the maintenance transaction report following the operational checks by the repair station inspector. The unsecured panel fasteners were not noticed during this final inspection and return to service.

The aircraft was then dispatched two days later on a flight to retrieve passengers. During the climbout the pilots reported an airframe vibration and then heard the panel separate from the aircraft. The aircraft returned to pym. The panel was not located. Local police and airport authorities were notified.

As the FAA filed it

ACCESS PANEL 170AB, A LOWER HINGED ACCESS PANEL, DEPARTED THE AIRCRAFT AS IT CLIMBED THROUGH 10,000 FEET. MAINTENANCE ACCESS PANEL 170AB HAD PREVIOUSLY BEEN OPENED TO PERFORM AN OCIP BLOCK 5 INSPECTION. UPON COMPLETION OF THE INSPECTION, OPERATIONAL CHECKS WERE COMPLETED IN ACCORDANCE WITH MANUFACTURERS INSTRUCTIONS; HOWEVER, THE PANEL WAS ONLY SECURED BY THE TECHNICIAN WITH 2 OF 30, DZUS 1/4 FASTENERS.

PRIOR TO COMPLETION OF THE OPERATIONAL CHECKS THE AIRCRAFT HAD TO BE REPOSITIONED, SO THE PANEL WAS ONLY SECURED WITH TWO OF THE FASTENERS AND THE TECHNICIAN DID NOT RETURN TO COMPLETE THE INSTALLATION OF THE REMAINING FASTENERS ONCE THE OPERATIONAL CHECKS WERE COMPLETED.

THE FINAL RETURN TO SERVICE STATEMENT WAS MADE ON THE MAINTENANCE TRANSACTION REPORT FOLLOWING THE OPERATIONAL CHECKS BY THE REPAIR STATION INSPECTOR. THE UNSECURED PANEL FASTENERS WERE NOT NOTICED DURING THIS FINAL INSPECTION AND RETURN TO SERVICE.

THE AIRCRAFT WAS THEN DISPATCHED TWO DAYS LATER ON A FLIGHT TO RETRIEVE PASSENGERS. DURING THE CLIMBOUT THE PILOTS REPORTED AN AIRFRAME VIBRATION AND THEN HEARD THE PANEL SEPARATE FROM THE AIRCRAFT. THE AIRCRAFT RETURNED TO PYM. THE PANEL WAS NOT LOCATED. LOCAL POLICE AND AIRPORT AUTHORITIES WERE NOTIFIED.