- Date
- June 19, 1993, 13:30 local (17:30 UTC)
- Place
- Grayling, AK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N9869MCessna 207
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 30, 1994
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19930619025179A
- Case key
- 2365
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The partial failure of the airplane's braking system.
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.
Analysis
After landing the pilot applied brake pressure and the right brake went 'soft.' He was unable to stop the airplane before running off the left side of the runway. Examination of the airplane showed that the right brake piston and 'o' ring had popped out of the caliper.
Factual narrative
On June 19, 1993, at 1345 Alaska daylight time, a wheel equipped Cessna 207 airplane, N 9869M, registered to and operated by MarkAir Express of Anchorage, Alaska, ran off the left side of the runway during the landing roll at Grayling, Alaska. The air taxi flight, operating under 14 CFR Part 135, departed Aniak, Alaska, and the destination was Grayling. A company VFR flight plan was filed and visual meteorological conditions prevailed. The Commercial Certificated Pilot-in-Command, the sole occupant, was not injured and the airplane received substantial damage.
According to the Pilot-in-Command the landing was normal and when he applied brakes the right brake pedal went "soft." He was unable to stop the airplane before running off the left side of the runway. Examination of the airplane and the right brake caliper showed that the piston and "O" ring had popped out of the caliper and the brake hydraulic brake fluid leaked out.
Aircraft
- Registration
- N9869M
- Reported as
- Cessna 207
- Category
- Airplane
- Serial number
- 20700744
- Engine
- Continental IO-520, 300 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Part 135
- Operator
- Markair Express, Inc.
- Registered owner
- Markair Express, Inc.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- AAIP · June 18, 1993 · 0 hours before
- Departed
- ANI · Aniak, AK
- Flight plan
- Company VFR
- Airport
- KGX · Grayling, runway 33, 2,200 × 60 ft, gravel
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
- 25
- Certificates
- Commercial, Flight instructor
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Toxicology
- Performed
- Flight hours
- 1,485 total · 392 in this make and model · 1,295 as pilot in command · 312 in the last 90 days · 106 in the last 30 days · 4 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 90 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.