FTW88LA075

NTSB accident investigation · Aerospatiale AS-355-F1 · Grand Prairie, TX · January 20, 1988

Accident · Minor injuriesLimited investigationFinal report
Date
January 20, 1988, 15:38 local (21:38 UTC)
Place
Grand Prairie, TX
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5800FAerospatiale AS-355-F1
Weather
Visual (VMC) · Day
Status
Completed · report September 11, 1989
Report
Approved by Office Director
FAA report
19880120018769A
Case key
22621

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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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.

Dragged wing,rotor,pod,float or tail/skidLanding - aborted
Emergency procedure - simulated
Terrain condition - softFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in command(cfi)Cause
Rotorcraft flight controls - improper use ofDual studentCause
Lack of total experience in kind of aircraftDual studentFactor
Supervision - inadequatePilot in command(cfi)Cause

Analysis

The acdt occurred on the 2nd flt of transition trng for an experienced helicopter plt. The trng on this flt included sim tail rotor failure run-on landings. The CFI demonstrated 2 landings and the trainee took the controls for the 3rd. The landings were being made in the grass beside a paved rwy. During the landing slide the front of the skids dug in and the helicopter pitched forward. The trainee pulled up on the collective and aft on the cyclic whereupon the helicopter rocked backwards and the tail struck the ground. The helicopter became airborne; however, the CFI detected vibration and unusual noise and announced 'tail rotor failure'. An emergency landing was completed with no additional damage or injuries.

Aircraft

Registration
N5800F
Reported as
Aerospatiale AS-355-F1
Category
Helicopter
Serial number
5191
Engine
Allison 250-C20F, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Era Helicopters
Registered owner
Era Helicopters
Airworthiness certificate
Standard, Normal
Departed
F67
Destination
F67
Airport
F67 · Grand Prairie

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
40
Certificates
Flight instructor, Commercial
Instrument ratings
Helicopter
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
2,200 total · 1,600 as pilot in command · 40 in the last 90 days · 20 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 8 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
48 °F, dew point 25 °F
Altimeter
30.00 inHg
Observed at
DFW, 10 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.