FTW86LA039

NTSB accident investigation · Socata MS Rallye 235C · Brenham, TX · January 21, 1986

Accident · No injuriesLimited investigationFinal report
Date
January 21, 1986, 12:14 local (18:14 UTC)
Place
Brenham, TX
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N355RASocata MS Rallye 235C
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860121001519A
Case key
21995

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

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Airframe/component/system failure/malfunctionApproach - vfr pattern - final approach
Flt control syst,wing flap control - failure,totalCause
Maintenance,annual inspection - inadequateOther maintenance personnelFactor
Flight control,flap - jammedCause
Forced landingDescent - emergency
In flight collision with objectLanding - flare/touchdown
Object - tree(s)Factor

Analysis

The right flap push rod experienced a progressive type failure from repeated excessive force being applied by the flap drive motor. The excessive force was caused by the flap rollers being neglected during maintenance to the extent that they became dry and slid on the flap track instead of rotating. The flap track also contained noticable wear although the last annual inspection was completed only three months prior to the accident. The aircraft became uncontrollable due to split flaps during the final portion of its final approach for landing. The aircraft touched down but was veering left. In order to prevent a collision with parked aircraft the pilot advanced the throttle and became airborne. After clearing the parked aircraft the pilot attempted a forced landing which terminated in a group of trees on the edge of the airport.

Aircraft

Registration
N355RA
Reported as
Socata MS Rallye 235C (MS RALLYE)
Category
Airplane
Serial number
13260
Airframe hours
193
Engine
Lycoming O-540-B4B5, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Joe R. Harding
Last inspection
Annual · October 16, 1985
Departed
Benchley, TX
Airport
11R · Brenham, runway 16, 4,000 × 75 ft, asphalt

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
35
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
440 total · 30 in this make and model · 407 as pilot in command · 30 in the last 90 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
0° at 15 knots, gusting 25
Visibility
15 statute miles
Lowest ceiling
None
Temperature
70 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.