ANC89FA043

NTSB accident investigation · de Havilland DHC-3 · Fairbanks, AK · February 10, 1989

Accident · No injuriesField investigationFinal report
Date
February 10, 1989, 09:45 local (13:45 UTC)
Place
Fairbanks, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N5056Qde Havilland DHC-3
Weather
Visual (VMC) · Day
Status
Completed · report April 19, 1990
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19890210034189A
Case key
5101

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

Failure of the pilot to remove frost from the aircraft. Contributing factors were: improper weight and balance and snow covered terrain.

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.

In flight collision with terrain/waterTakeoff - aborted
Ice/frost removal from aircraft - not performedPilot in commandCause
Aircraft weight and balance - improperCompany/operator managementFactor
Aborted takeoff
Terrain condition - snow coveredFactor

Analysis

The plt rprtd that before the flt, the wings & stabilizer were swept, leaving a layer of 'polished' frost. Freight was loaded & the acft was serviced to bring the fuel level up to 120 gal. After start, taxi & run-up, the plt began his takeoff from the approach end of the 10,300 ft rwy (with 35' mp & 2250 RPM). At about 100 ft AGL, he adjusted the power (to 30' mp & 2000 RPM) & raised the flaps to climb at 82 KTS. However, the acft did not climb & would not accelerate in level flt. The plt increased the power (to 31' mp & 2100 RPM), but he believed there was a definite loss of power. Subsequently, the acft was damaged when the plt aborted the takeoff on snow covered terrain beyond the end of the rwy. No pre-acdnt part failure or malfunction of the acft or eng was found. An inv revealed the entire acft was covered with a coating of frost. Company records showed the empty weight of the acft was 5088 lbs; the acft's actual empty weight was 5285 lbs. An FAA inspector calculated that the takeoff gross weight exceeded the max limit by 130 lbs.

Aircraft

Registration
N5056Q
Reported as
de Havilland DHC-3
Category
Airplane
Serial number
296
Engine
P&W R-1340-59, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Registered owner
40 Mile Air Ltd
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 20, 1988 · 83 hours before
Departed
FAI · Fairbanks, AK
Destination
EAA · Eagle, AK
Flight plan
Company VFR
Airport
FAI · Fairbanks, runway 1, 10,300 × 150 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
41
Certificate
Airline transport
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
9,153 total · 600 in this make and model · 7,440 as pilot in command · 230 in the last 90 days · 53 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 5 knots
Visibility
90 statute miles
Lowest ceiling
None
Temperature
1 °F

FAA reports on this event · 1

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