No fatalities

16 May 2009: PIPER PA-32-301 — Alaska Island Air, Inc. — Birchwood, AK

Birchwood, AK, United States

On 16 May 2009, a PIPER PA-32-301 operated by Alaska Island Air, Inc. was involved in an aviation accident near Birchwood, AK. No fatalities were reported. Investigators recorded the probable cause as: 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. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

During a ferry flight, the upper portion of the aft cargo door separated, striking and substantially damaging the horizontal stabilator. The pilot had believed the door was latched. An investigation found a missing striker plate and misaligned locking mechanism.

Introduction

An airline transport pilot was operating a ferry flight under Title 14, CFR Part 91, transporting the airplane to an airport for painting. During the cruise phase of flight, the upper portion of the aft cargo door detached from the aircraft.

Incident Sequence

The separated door part struck the horizontal stabilator, causing substantial damage. The pilot reported that he believed the cargo door was latched securely before departure. Despite the in-flight separation, the flight continued to its intended destination and landed without further incident.

Examination

Following the flight, an FAA inspector examined the fuselage-mounted upper door latch. The inspection revealed that the upper portion of the latch striker plate was missing, and the door locking mechanism was not properly aligned with the latch. The inspector noted that the missing portion of the latching plate appeared to have been absent for an extended period prior to the event and should have been detected during routine maintenance inspections. The separated upper portion of the door was not recovered.

Damage

The aircraft sustained substantial damage to the horizontal stabilator as a result of the impact from the detached door component. No other damage was reported.

Notes

  • The pilot held an airline transport pilot certificate.
  • The flight was conducted under Part 91 (general operating and flight rules).
  • The purpose of the flight was to reposition the aircraft for painting.

Contributing factors

Cargo/baggage doors — FailureInadequate inspectionMaintenance personnel