DCA85AA023

NTSB accident investigation · General Dynamics 240-27 · West Trenton, NJ · June 19, 1985

Accident · Serious injuriesFinal report
Date
June 19, 1985, 07:02 local (11:02 UTC)
Place
West Trenton, NJ
Injuries
2 serious
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N155PAGeneral Dynamics 240-27
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
NTSB office
Major Investigations Division
Case key
15832

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.

Loss of engine power(partial) - mech failure/malfTakeoff - initial climb
Eng assembly,blower/impeller/integral supercharger - failure,totalCause
Propeller feathering - performed
Forced landingManeuvering - turn to landing area (emergency)
Throttle/power control - improper use ofPilot in commandCause
Information unclearCompany/operator managementFactor
In flight collision with terrain/waterManeuvering - turn to landing area (emergency)
Object - tree(s)Factor
Terrain condition - rough/unevenFactor

Analysis

The coplt bgn takeoff (tkof) with 2700 RPM & 52 to 53.5' of manifold pressure (mp). Wtr injection was not used altho 12 gal was available. At 150 to 250 ft AGL, the l eng lost pwr & the l prop autofeathered. The capt took control (ctl) & took action to verify l eng feathering. Neither plt moved any of the other eng ctls. A turn was initiated to return to the arpt, but the acft bgn losing speed & alt. Subsequently, it crash lndd in a partly wooded area short of an open fld & burned until fire fighting psnl arrived. The impeller was demolished by fire, but evidence of debris from the impellerwas fnd in the l eng intake & on top of its #3 & # 11 piston. The company's stated policy was to use wtr (wet tkof), except when precluded by mechanical malfunction or lack of ADI fluid; however, 4 dissimilar power charts were fnd in theacft. Tkoff wt was 38,670 lbs. Perf manual showed acft capable of 420 fpm clb with 12 deg of flaps, 1 prop feathered, lndg gear up, dry pwr (no wtr). Max pwr setting was 2700 RPM & 56' mp for dry tkof; 2800 RPM & 59.5' mp for wet tkof.

Aircraft

Registration
N155PA
Reported as
General Dynamics 240-27
Category
Airplane
Serial number
322
Airframe hours
16,900
Engine
P&W R-2800-CB3, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Part 121
Registered owner
Providence Airline Corp.
Airworthiness certificate
Standard, Normal; Standard, Transport
Last inspection
Continuous airworthiness · June 19, 1985 · 128 hours before
Departed
TTN · Trenton, NJ
Destination
DTW · Detroit, MI
Flight plan
IFR
Airport
TTN · Mercer County, runway 24, 6,006 × 150 ft, concrete

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
49
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
7,000 total · 2,500 in this make and model · 124 in the last 90 days · 39 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 5 knots
Visibility
12 statute miles
Lowest ceiling
20,000 ft broken
Temperature
66 °F
Altimeter
29.00 inHg
Observed at
TTN, 1 nm away