CHI92IA068

NTSB incident investigation · British Aerospace BAE-ATP · Fort Wayne, IN · January 8, 1992

Incident · No injuriesIncident investigationFinal report
Date
January 8, 1992, 11:30 local (16:30 UTC)
Place
Fort Wayne, IN
Injuries
16 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N852AWBritish Aerospace BAE-ATP
Weather
Visual (VMC) · Day
Status
Completed · report May 26, 1993
Report
Approved by Office Director
FAA report
19920108003949I
Case key
15322

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

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Probable cause

Failure of company maintenance personnel to maintain the airplane in accordance with existing service bulletins.

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.

Airframe/component/system failure/malfunctionDescent - normal
Autopilot/flight director - failure,partial
Electrical system - not maintainedCompany maintenance personnelCause
Acft/equip,inadequate compliance determinationCompany maintenance personnel
Fire warning system,powerplant - false indication

Analysis

When a descent was commenced from 11,000 feet, multiple static discharges occurred on both the captain's and first officer's windshields, followed by loss of both the captain's and first officer's EFIS displays. The flight was continued to the destination on primary flight displays. Enroute a right engine fire warning indication was received. The flight landed without further incident and a subsequent examination revealed that 24 static discharge wicks were found to be defective. Several static wicks were not bonded to the airframe. Other similar bonding problems were found on the airplane. The failure of the engine fire warning system was traced to a contaminated electrical connector.

Aircraft

Registration
N852AW
Reported as
British Aerospace BAE-ATP
Category
Airplane
Serial number
2021
Engine
P&W PW126A, 2,653 horsepower, turbo prop
Damage
No damage
Flight
Part 121
Operator
Air Wisconsin Airlines
Registered owner
Air Wisconsin Airlines
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · January 2, 2000
Departed
ORD · Chicago, IL
Flight plan
IFR
Airport
FWA · Baer Field, runway 14, 8,500 × 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
51
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
3,028 total · 447 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 10 knots
Visibility
3 statute miles
Lowest ceiling
6,500 ft overcast
Temperature
34 °F, dew point 30 °F
Altimeter
30.00 inHg
Observed at
FWA, 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.

Other investigations on N852AW · 1

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