LAX89LA044

NTSB accident investigation · Enstrom F-28C · Inyokern, CA · November 16, 1988

Accident · No injuriesLimited investigationFinal report
Date
November 16, 1988, 13:15 local (21:15 UTC)
Place
Inyokern, CA
Injuries
2 uninjured
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N552CSEnstrom F-28C
Weather
Visual (VMC) · Day
Status
Completed · report January 4, 1990
Report
Approved by Office Director
FAA report
19881116052289A
Case key
26293

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.

Loss of engine powerTakeoff - initial climb
Adequate rotor rpm - not maintainedPilot in commandCause
Forced landingDescent - emergency
Autorotation - attemptedPilot in command
Hard landingLanding

Analysis

The pilot stated that, 'I landed in an open unpopulated area for the mechanic ... To make adjustments on the main blade (we were tracking and balancing the blades). I never shut the engine down. I disengaged the clutch. After the adjustment was made, I engaged the clutch and brought it up to full power with all the checks before lifting off. Everything checked out ok. I had landed into the wind and departed into the wind. About 25-30 feet high the helicopter sounded like it was losing power and vibration was felt. A quick look revealed loss of both tachs (tachometers) of rotor and engine. I lowered the collective and added more power with no effect. Upon landing the helicopter rolled over on its left side. No controls were effective due to loss of (engine/rotor) rpms.' The helicopter had been moved prior to officials arriving on scene. Later inspection revealed no evidence of a mechanical malfunction or failure of any system.

Aircraft

Registration
N552CS
Reported as
Enstrom F-28C
Category
Helicopter
Serial number
437
Airframe hours
592
Engine
Lycoming HI0-360-E1AD, 205 horsepower, reciprocating
Damage
Destroyed
Flight
Part 91
Operator
Westar
Registered owner
Graig R Saunders, M.D., Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 3, 1988 · 5 hours before
Departed
NONE · Inyokern, CA
Destination
BFL · Bakersfield, CA

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
48
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,500 total · 100 in this make and model · 2,500 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 15 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
64 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N552CS · 1

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