19910330015629I

Incident · Minor damage

FAA incident report · Bell 47D1 · Butler, MD · March 30, 1991

Date: March 30, 1991 · 16:15 local
Place: Butler, MD
Phase of flight: Pwr Off Vert Land/Autorotate
Operating rules: General operating rules (Part 91)
Damage: Minor damage
Aircraft: N4229A
Reported as: Bell 47D1
Reported engine: Franklin 6V4200*
People aboard: 2
Fatal injuries: 0
Pilot’s flight hours: 3,300 total150 in this make and model90 in the last 90 days

N4229ARegistration cancelled Feb 2, 2026 · Bell 47D1S/N 001 · Built 1961 Airframe modelBell 47D1 Engine modelFranklin 6V4 seriesReciprocating

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 quit in flight. Entered autoratation and landed in field. Found two studs on NR1 cylinder were broken.

As the FAA filed it

ENGINE QUIT IN FLIGHT. ENTERED AUTORATATION AND LANDED IN FIELD. FOUND TWO STUDS ON NR1 CYLINDER WERE BROKEN.

Other reports on N4229A · 2

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

Incident 20050413006029INormal Cruise · New Cumberland, PA(-23) On April 13, 2005, the pilot [privacy data omitted] operated Bell helicopter N4229A from capital city airport until the engine failed due to fuel exhaustion. He performed an autorotation to the Pennsylvania turnpike. He did not ensure adequate fuel for…Apr 13, 2005 Accident 19900513015869ASfl Autorotation · Baltimore, MDRocked forward on skids at touchdown from practice autorotation. Main rotors flexed down and chopped tailboom.May 13, 1990 · Substantial damage