19960206010029I

Incident · Minor damage

FAA incident report · Piper PA46310P · Lakes Wales, FL · February 6, 1996

Date
February 6, 1996 · 20:30 local
Place
Lakes Wales, FL
Airport
Chalet Suzanne Air Strip Airport
Phase of flight
Takeoff Ground Roll
Operating rules
General operating rules (Part 91)
Damage
Minor damage
Aircraft
N701TF
Reported as
Piper PA46310P
People aboard
2
Fatal injuries
0
Pilot’s flight hours
2,198 total464 in this make and model156 in the last 90 days

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.

Narrative: the acft nose gear collapsed at the beginning of takeoff roll, after the acft had rolled about 15 feet. (The PIC reportedly landed on the 2,450 ft turf rwy a few hours earlier in the evening, to have dinner at a restaurant located at the airport). Examination of the aircraft revealed that the nose gear actuator rod-end (Piper part # 452 853) had fractured and broken, allowing the nose gear to collapse. Visual inspection of the rod end and fracture surfaces revealed features typical of bending overload and instantaneous ductile failure (dull, fibrous fracture texture; shear lip; necking). The rod end had bent approximately 10 degrees before failing. Inspection of the actuator-to-fuselage attach bolt (pn 401 508) revealed that it was deformed from shear loading between the actuator and the fuselage attach point. (The longitudinal axis of the bolt when installed is oriented along the acft lateral axis, indicating that the shear loading resulted from aft-loading of the actuator while the gear was extended). The investigation did not reveal any evidence that the failed rod-end was an unapproved part. Examination of acft records revealed that the rod-end was installed in the acft on 6/2/95. The time in service since installation was calculated to be 249.1 hours. Telecon with AFS-643 (safety data analysis section) revealed no records of previous failures involving rod end p/n 452 853. Malfunction/defect report obtained from the mechanic that is repairing the acft. Pilot information for FAA form 8020-5 (incident report) obtained from insurance company investigator (repeated attempts to contact the PIC by phone were unsuccessful).

As the FAA filed it

NARRATIVE: THE ACFT NOSE GEAR COLLAPSED AT THE BEGINNING OF TAKEOFF ROLL, AFTER THE ACFT HAD ROLLED ABOUT 15 FEET. (THE PIC REPORTEDLY LANDED ON THE 2,450 FT TURF RWY A FEW HOURS EARLIER IN THE EVENING, TO HAVE DINNER AT A RESTAURANT LOCATED AT THE AIRPORT). EXAMINATION OF THE AIRCRAFT REVEALED THAT THE NOSE GEAR ACTUATOR ROD-END (PIPER PART # 452 853) HAD FRACTURED AND BROKEN, ALLOWING THE NOSE GEAR TO COLLAPSE. VISUAL INSPECTION OF THE ROD END AND FRACTURE SURFACES REVEALED FEATURES TYPICAL OF BENDING OVERLOAD AND INSTANTANEOUS DUCTILE FAILURE (DULL, FIBROUS FRACTURE TEXTURE; SHEAR LIP; NECKING). THE ROD END HAD BENT APPROXIMATELY 10 DEGREES BEFORE FAILING. INSPECTION OF THE ACTUATOR-TO-FUSELAGE ATTACH BOLT (PN 401 508) REVEALED THAT IT WAS DEFORMED FROM SHEAR LOADING BETWEEN THE ACTUATOR AND THE FUSELAGE ATTACH POINT. (THE LONGITUDINAL AXIS OF THE BOLT WHEN INSTALLED IS ORIENTED ALONG THE ACFT LATERAL AXIS, INDICATING THAT THE SHEAR LOADING RESULTED FROM AFT-LOADING OF THE ACTUATOR WHILE THE GEAR WAS EXTENDED). THE INVESTIGATION DID NOT REVEAL ANY EVIDENCE THAT THE FAILED ROD-END WAS AN UNAPPROVED PART. EXAMINATION OF ACFT RECORDS REVEALED THAT THE ROD-END WAS INSTALLED IN THE ACFT ON 6/2/95. THE TIME IN SERVICE SINCE INSTALLATION WAS CALCULATED TO BE 249.1 HOURS. TELECON WITH AFS-643 (SAFETY DATA ANALYSIS SECTION) REVEALED NO RECORDS OF PREVIOUS FAILURES INVOLVING ROD END P/N 452 853. MALFUNCTION/DEFECT REPORT OBTAINED FROM THE MECHANIC THAT IS REPAIRING THE ACFT. PILOT INFORMATION FOR FAA FORM 8020-5 (INCIDENT REPORT) OBTAINED FROM INSURANCE COMPANY INVESTIGATOR (REPEATED ATTEMPTS TO CONTACT THE PIC BY PHONE WERE UNSUCCESSFUL).