- Date
- July 13, 1988, 09:10 local (17:10 UTC)
- Place
- Haines, AK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Standing
- Aircraft
- N8620CEnstrom F-28F
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 9, 1989
- Report
- Approved by Office Director
- FAA report
- 19880713065119A
- Case key
- 40843
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The pilot purchased the helicopter with an undocumented modification designed to restrain the collective. Reportedly, hereceived no guidance regarding the use of the collective hold-down device. According to the aircraft manufacturer there existed no Enstrom approved collective hold-down devices other than the installed friction lock. After engine start the pilot used two hands to release the collective friction. The Enstrom F28 'before takeoff' checklist warns pilots to 'keep hand on collective and maintain down position when (collective) lock is disengaged', after releasing the lock the pilot said the collective sprung to the full up position. The aircraft rolled to the left about its longitudinal axis. The pilot stated that he relied on the modification, a collective hold-down chain, to keep the collective secure.
Aircraft
- Registration
- N8620C
- Reported as
- Enstrom F-28F
- Category
- Helicopter
- Serial number
- 706
- Airframe hours
- 415
- Engine
- Lycoming HTIO-360-F1AD, 225 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- L.A.B. Flying Service
- Registered owner
- Layton A Bennett
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · January 20, 1988 · 23 hours before
- Destination
- JNU · Juneau, AK
- Flight plan
- VFR
- Airport
- HNS · Haines Airport
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 69
- Certificate
- Airline transport
- Airplane ratings
- Multi-engine land, Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 30,000 total · 97 in this make and model · 30,000 as pilot in command · 25 in the last 90 days · 15 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 90° at 5 knots
- Visibility
- 25 statute miles
- Lowest ceiling
- 3,500 ft overcast
- Temperature
- 54 °F, dew point 48 °F
- Altimeter
- 29.00 inHg
- Observed at
- HNS
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.