NYC92IA030

NTSB incident investigation · Douglas DC-8-63 · Toledo, OH · November 13, 1991

Incident · No injuriesIncident investigationFinal report
Date
November 13, 1991, 04:45 local (09:45 UTC)
Place
Toledo, OH
Injuries
3 uninjured
Damage
Minor damage
Phase of flight
Enroute
Aircraft
N794ALDouglas DC-8-63
Weather
Visual (VMC) · Night/dark
Status
Completed · report May 5, 1993
Report
Approved by Office Director
Case key
37078

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

On this page

Probable cause

The failure of the flight engineer to conduct a proper preflight inspection and ensure the main cargo door was fully closed and locked. Factors related to the accident were the damaged wires in the bundle, and the improper main cargo door installation.

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.

DecompressionClimb - to cruise
Door,cargo/baggage - improperFactor
Maintenance,installation - improperOther maintenance personnelFactor
Electrical system,electric wiring - chafedFactor
Aircraft preflight - improperFlight engineerCause

Analysis

The main cargo door opened in flight and the airplane returned for a normal landing. Of the two circuit breakers required to be pulled prior to takeoff, one was found still engaged. A conformity inspection on the cargo door installation revealed several areas of nonconformity including door locks of less than required strength, lack of paint on door locks which is used for visual identification, and damaged wires in a bundle. The wires were part of the door closing, door locked indicating system. The investigation revealed it was possible for the door to be not completely closed and have the door warning light go out, indicating it was fully locked.

Aircraft

Registration
N794AL
Reported as
Douglas DC-8-63
Category
Airplane
Serial number
45923
Engine
P&W JT3D-7, 19,000 lbs thrust, turbo fan
Damage
Minor damage
Flight
Part 121
Operator
Flagship Express
Registered owner
Aero Lease Financial Group Inc
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · January 2, 2000
Destination
LAX · Los Angeles, CA
Flight plan
IFR

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
33
Certificates
Commercial, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
8,000 total · 6,300 in this make and model

Weather

Conditions
Visual (VMC) · Night/dark

Other investigations on N794AL · 1

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