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20030420005249A

Accident · Substantial damage
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FAA accident report · Maule MX-7-235 · Plummer, ID · April 20, 2003

FAA Aviation Safety Information Portal

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Date
April 20, 2003 · 17:15 local
Place
Plummer, ID
Phase of flight
Roll-Out (Fixed Wing)
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N114MK
NTSB investigation
NTSBSEA03LA066
Reported as
Maule MX7235
People aboard
2
Fatal injuries
0
Pilot’s flight hours
1,238 total934 in this make and model9 in the last 90 days
N114MKRegistered now · Maule MX-7-235S/N 10022-CAirframe modelMaule MX-7-235Engine modelLycoming IO-540 seriesReciprocating

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry 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.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(-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.

As the FAA filed it

(-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.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB SEA03LA066Accident · No injuriesLimited investigationFinal reportPlummer, IDThe 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 excessive braking was applied.Apr 20, 2003 · Substantial damage

Other reports on N114MK · 1

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

Accident 20120511008739ALanding: Touchdown · Roche Harbor, WAOn 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, WA (WA09). The sole occupant, the pilot-in-command (PIC), was not injured. The PIC was conducting a…May 11, 2012 · Substantial damage