- Date
- September 29, 1986, 18:45 local (Sep 30, 1986, 00:45 UTC)
- Place
- Boulder, CO
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N3694DBeech 60
- Weather
- Visual (VMC) · Night/dark
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19860929048829A
- Case key
- 17056
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
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
At touchdown, the plt applied brakes normally. He noticed softening of the left brake pedal and the acft turned right leaving the rwy and intersecting a taxiway at aprx a 30 degree angle. The taxiway had a six inch rise at the edge which caused the left main gear to collapse upon impact. Investigation revealed that the brake fluid leaked out during flt because of a cocked brake puck.
Aircraft
- Registration
- N3694D
- Reported as
- Beech 60
- Category
- Airplane
- Serial number
- P-552
- Airframe hours
- 1,188
- Engine
- Lycoming TIO-541-E1C4, 380 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Robert G. Knollenberg
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · October 17, 1985 · 88 hours before
- Departed
- ASE · Aspen, CO
- Destination
- 1V5 · Boulder, CO
- Flight plan
- VFR
- Airport
- IV5 · Boulder
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
- 47
- Certificate
- Private
- Airplane ratings
- Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, Unknown
- Seat
- Left
- Flight hours
- 1,455 total · 23 in this make and model · 1,294 as pilot in command · 44 in the last 90 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Night/dark
- Wind
- 310° at 13 knots
- Visibility
- 25 statute miles
- Lowest ceiling
- 1,500 ft broken
- Temperature
- 61 °F, dew point 36 °F
- Altimeter
- 29.00 inHg
- Observed at
- BJC
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.