# Accident 20030420005249A: Maule MX7235, Plummer, ID, April 20, 2003

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: April 20, 2003, 17:15 local time
- Place: Plummer, ID
- Damage: Substantial damage
- Phase of flight: Roll-Out (Fixed Wing)
- Operating rules: General operating rules (Part 91)
- Location: 47.3433° N, 116.9150° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=47.3433&lon=-116.9150&mi=10
- Aircraft: N114MK, registered now (https://openairdocs.org/aircraft/N114MK) (OpenAirDocs)
- Registry model: Maule MX-7-235 (registry code 5470207, https://openairdocs.org/model/maule-mx-7-235) (OpenAirDocs)
- Registry engine: Lycoming IO-540 series (registry code 41530, https://openairdocs.org/engine/lycoming-io-540-series) (OpenAirDocs)
- Reported make and model: MAULE MX7235
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 1,238 total, 934 in this make and model, 9 in the last 90 days
- NTSB investigation: [NTSB SEA03LA066](https://openairdocs.org/ntsb/SEA03LA066) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20030420005249A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) ON 4/20/03 PILOT TOOK OFF FROM AUBURN, WA AND LANDED AT TEKOA, WA. HE WAS PICKED UP BY RELATIVES AND WENT TO THEIR FARM TO CHECK THE CONDITION OF THE GRASS LANDING STRIP. THE PILOT THEN RETURNED AND FLEW TO THE FARM AND LANDED. HE THEN TOOK HIS STEP SISTER ON A SIGHT SEEING TRIP AROUND THE AREA AND LANDED AT ST. MARIES, ID FOR FUEL. HE TOPPED OFF THE TANKS. HE THEN RETURNED TO THE FARM AND ON LANDING THE LEFT BRAKE LOCKED UP AND THE AIRCRAFT TIPPED OVER ON ITS BACK. THE AIRCRAFT WAS EQUIPPED WITH SHOULDER HARNESS AND NEITHER OCCUPANT WAS INJURED. THE WHEEL SKID MARKS WERE ABOUT 150 FEET LONG. INSPECTION OF THE PILOT'S LEFT BRAKE MASTER CYLINDER SHOWED THE SPRING THAT KEEPS THE PARKING BRAKE LOCKING TAB DOWN (UNLESS THE PARKING BRAKE IS APPLIED), WAS HUNG UP ON THE MASTER CYLINDER SHAFT AND WAS NOT PUSHING ON THE LOCKING TAB. THERE WAS APPARENTLY A BURR ON THE SHAFT. I WAS ABLE TO DUPLICATE THE LOCKED BRAKE BY APPLICATION OF THE TOE BRAKES, WHICH INTERMITTENTLY PICKED UP THE PARKING BRAKE TAB BECAUSE THE SPRING WAS NOT PUSHING IT DOWN AGAINST THE TOP OF THE MASTER CYLINDER. WHEN IT DID, IT LOCKED THE BRAKE. M&D WILL BE SUBMITTED. SEE ATTACHED PHOTO.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB SEA03LA066](https://openairdocs.org/ntsb/SEA03LA066), Apr 20, 2003: Maule MX-7-235 (N114MK), Plummer, ID, substantial damage. Probable cause: The jamming of the left parking brake locking tab on a burr on the left brake master cylinder activation rod during the landing roll, resulting in the left brake becoming locked in a position where…

## Other reports on N114MK (1)

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

- [Accident 20120511008739A](https://openairdocs.org/incident/20120511008739A), May 11, 2012: Maule MX-7-235 (N114MK), Roche Harbor, WA, Substantial damage. On 5/11/2012, at approximately 1435PDT, Maule MX-7-235 aircraft, N114MK, sustained substantial damage due to a runway excursion during landing at Roche Harbor,…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.