FTW90GA185

NTSB accident investigation · Hughes 369HS · New Orleans, LA · September 21, 1990

Accident · No injuriesFinal report
Date
September 21, 1990, 18:50 local (23:50 UTC)
Place
New Orleans, LA
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N71552Hughes 369HS
Weather
Visual (VMC) · Day
Status
Completed · report February 12, 1993
Report
Approved by Office Director
FAA report
19900921061539I
Case key
23050

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot's failure to maintain rotor RPM. A factor in the accident was the lose of engine power due to fuel starvation.

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 power(total) - nonmechanicalManeuvering
Fluid,fuel - starvationFactor
Fuel consumption calculations - not performedPilot in commandFactor
Fuel system,fuel quantity float/sensor - movement restrictedFactor
Maintenance,adjustment - improperOther maintenance personnelFactor
Forced landingDescent - emergency
Hard landingLanding - flare/touchdown
Rotor rpm - not maintainedPilot in commandCause

Analysis

The helicopter was holding to the southwest of the airport at approximately 70 knots and 300 feet AGL awaiting landing clearance when the turbine engine flamed out. The instructor took over the controls and initiated an autorotation to an open athletic field. He flared abruptly to avoid a baseball backstop and landed hard. The main rotor blades drooped and severed the tailboom. Post-accident examination of the fuel system revealed an incorrectly installed float arm. Approximately 250 ml of jet fuel was drained from the main fuel cell. An auxiliary fuel tank was found full of fuel with the pilot cockpit control lever in the off position.

Aircraft

Registration
N71552
Reported as
Hughes 369HS
Category
Helicopter
Serial number
120365S
Engine
Allison 250-C20, 400 horsepower, turbo shaft
Damage
Substantial damage
Flight
Public aircraft · Part 91
Operator
Steel City Aviation
Airport
NEW · Lakefront

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
43
Certificates
Flight instructor, Commercial, Airline transport
Airplane ratings
Single-engine sea, Multi-engine land, Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 1, Valid Medical--no waivers/lim.
Flight hours
10,250 total · 350 in this make and model · 9,925 as pilot in command · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 68 °F
Altimeter
29.00 inHg
Observed at
NEW, 1 nm away

FAA reports on this event · 1

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