19961113035289A

Accident · Substantial damage

FAA accident report · Hughes 369D · Hana, HI · November 13, 1996

Date: November 13, 1996 · 14:50 local
Place: Hana, HI
Phase of flight: Normal Cruise
Operating rules: Air taxi and commuter (Part 135)
Operator: DNWA
Damage: Substantial damage
Aircraft: N8625F
NTSB investigation: NTSBLAX97LA039
Reported as: Hughes 369D
Reported engine: Allison 250C20B
People aboard: 5
Fatal injuries: 0
Pilot’s flight hours: 5,350 total3,700 in this make and model260 in the last 90 days

N8625FRegistration cancelled Jun 15, 2017 · Hughes Helicopters HUGHES 369DS/N 470111D · Built 1977 Airframe modelHughes Helicopters HUGHES 369D Engine modelAllison 250 SER 250HPTurbo-shaft

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.

Engine loud explosion at cruise. Autorated. Rolled over. Spur adapter sag fractured. Sb on sag. Not done. Sag shift

As the FAA filed it

ENGINE LOUD EXPLOSION AT CRUISE. AUTORATED. ROLLED OVER. SPUR ADAPTER SAG FRACTURED. SB ON SAG. NOT DONE. SAG SHIFT

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB LAX97LA039Accident · No injuriesLimited investigationFinal reportHana, HIsubsequent failure of the spur adapter gearshaft (SAG), after 'retaining ring to compressor impeller machining' occurred and allowed the SAG to shift aft. The mechanism which induced the ring to impeller machining was not determined. Mountainous terrain in…Nov 13, 1996 · Substantial damage

Other reports on N8625F · 3

Matched to the same aircraft by N-number and date.

Incident 19960411011749IIdling Rotors · Kahului, HINarrative: pilot stated after second tour of the day, he felt landing was normal. He rolled the throttle to ground idle. For pax unloading, the a/c shuddered and leaned left. Tail rotor struck ground. It was found that left rear lnd. Gear had failed. Part…Apr 11, 1996 · Minor damage Incident 19920912050799INormal Cruise · Honolulu, HIA bolt in a shackle sheared while lifting 500 lbs battery. Load fell in a remote area of airport.Sep 12, 1992 Incident 19790302010519IFcd/Prec Ldg From Cruise · Los Angeles, CAEngine power surges before landing. Unable to duplicate engine problem on ground.Mar 2, 1979