ANC09CA048

NTSB accident investigation · Piper PA-32-301 · Birchwood, AK · May 16, 2009

Accident · No injuriesData collectionFinal report
Date
May 15, 2009, 16:00 local (May 16, 2009, 00:00 UTC)
Place
Birchwood, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N8374TPiper PA-32-301
Defining event
Enroute-cruise: Part(s) separation from AC
Weather
Visual (VMC) · Day
Status
Completed · report September 30, 2009
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA
FAA report
20090515047189A
Case key
73913

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

On this page

Probable cause

The failure of maintenance personnel to properly maintain the cargo door latch, resulting in an in-flight opening and separation of the cargo door, and substantial damage to the horizontal stabilator when it was struck by remnants of the cargo door.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Doors: cargo/baggage doorsAircraft › Aircraft structures · FailurePiper PA-32-301: 1 caseAll aircraft: 9 casesProbable cause
Doors: cargo/baggage doorsAircraft › Aircraft structures · Inadequate inspectionPiper PA-32-301: 1 caseAll aircraft: 9 casesProbable cause
Inspection: scheduled/routine inspectionPersonnel issues › Task performance · Maintenance personnelPiper PA-32-301: 1 caseAll aircraft: 167 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The airline transport pilot was ferrying the airplane under Title 14, CFR Part 91, to an airport to be painted. During cruise flight, the upper portion of the aft cargo door separated from the airplane, striking the horizontal stabilator. The pilot said he believed the door was latched securely prior to the flight. The flight continued to the destination airport and landed uneventfully. An examination of the fuselage-mounted upper door latch by an FAA inspector showed that the upper portion of the latch striker plate was missing, and the door locking mechanism was not properly aligned with the latch. The FAA inspector noted that it appeared that the missing portion of the latching plate had been missing long before the accident, and should have been found on routine maintenance inspections. The upper portion of the door was not recovered. The airplane sustained substantial damage to the stabilator.

Factual narrative

The airline transport pilot was ferrying the airplane under Title 14, CFR Part 91, to an airport to be painted. During cruise flight, the upper portion of the aft cargo door separated from the airplane, striking the horizontal stabilator. The pilot said he believed the door was latched securely prior to the flight. The flight continued to the destination airport and landed uneventfully. An examination of the fuselage-mounted upper door latch by an FAA inspector showed that the upper portion of the latch striker plate was missing, and the door locking mechanism was not properly aligned with the latch. The FAA inspector noted that it appeared that the missing portion of the latching plate had been missing long before the accident, and should have been found on routine maintenance inspections. The upper portion of the door was not recovered. The airplane sustained substantial damage to the stabilator.

Aircraft

Registration
N8374T
Reported as
Piper PA-32-301
Category
Airplane
Serial number
32-8106058
Airframe hours
12,550
Engine
Lycoming IO-540 SER, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Ferry · Part 91
Operator
Carlos Sean N, doing business as Alaska Island Air, Inc.
Registered owner
Carlos Sean N
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · January 3, 2009
Departed
MRI · Merrill Field, AK
Destination
PABV · Birchwood, AK

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
60
Injuries
None
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
October 17, 2008
Seat
Left
Flight hours
10,084 total · 2,000 in this make and model · 9,678 as pilot in command · 25 in the last 90 days · 11 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None

Docket · 2

The files NTSB released with the investigation on July 7, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 687 KB in all.

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 N8374T · 2

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