# AD 58-25-05: Door Latch Modification

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-24
- Published: March 20, 1959
- Issued: March 19, 1959
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 345 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7F1FD0E0DBB0168B8625698B00765395.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/58-25-05

## The airworthiness directive

58-25-05 PIPER: Applies to Model PA-24 Aircraft, Serial Numbers 1 Through 336.

Compliance required by February 1, 1959.

It has been determined that an unsafe condition exists with respect to the door latch arrangement of the aircraft affected. At present it is not possible to open the cabin door from the inside if it has been locked on the outside. In order to preclude occupants becoming inadvertently locked inside the cabin of PA-24 aircraft in the case of some emergency, the main cabin door latch assembly must be modified to permit opening the door from inside the aircraft under all conditions.

(Item No. 1 of Piper Service Letter No. 305 dated October 1, 1958, presents an acceptable method of modifying the aircraft.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1A15](https://openairdocs.org/tcds/1A15): Piper Aircraft Inc.; names 1 of 4 models: PA-24

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 345 (345 by airframe model, 0 by engine model)
- Makers: Piper 345

Models with the most aircraft:

- [Piper PA-24](https://openairdocs.org/model/piper-pa-24): 345 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/58-25-05/models.md
Every aircraft: https://openairdocs.org/ad/58-25-05/aircraft.md

Its text cites no advisory circulars or STCs.

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