- Date
- November 22, 1988, 18:55 local (22:55 UTC)
- Place
- Deadhorse, AK
- Injuries
- 1 uninjured
- Damage
- No damage
- Phase of flight
- Enroute
- Aircraft
- N20752Cessna A185F
- Weather
- Visual (VMC) · Night/bright
- Status
- Completed · report January 25, 1990
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19881122052679I
- Case key
- 5125
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
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
Acft bounced several times during landing. The pilot collapsed shortly after getting out of the airplane. Blood samples, taken from the pilot three hours after landing, contained 22.1% carbon monoxide. The left engine muffler overboard tube was broken loose from the muffler, where the two are welded, allowing exhaust gas to enter the cockpit through the heater system. The overboard tube had a .022 inch deep groove from rubbing against the engine cowling, on the side where the crack originated. The muffler had been installed during the last 100 hour inspection, 68 hours previously. The source of manufacturer of the muffler could not be verified.
Aircraft
- Registration
- N20752
- Reported as
- Cessna A185F
- Category
- Airplane
- Serial number
- 18503041
- Airframe hours
- 2,009
- Engine
- Continental IO-520, 300 horsepower, reciprocating
- Damage
- No damage
- Flight
- Part 135
- Operator
- Cape Smythe Air Service
- Registered owner
- Cape Smythe Air Service
- Last inspection
- 100 hour · October 24, 1988 · 68 hours before
- Departed
- BRW · Barrow, AK
- Destination
- SCC · Deadhorse, AK
- Flight plan
- VFR
- Airport
- SCC · Deadhorse, runway 22, 6,500 × 150 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
- 37
- Certificates
- Flight instructor, Airline transport
- Airplane ratings
- Single-engine land, Single-engine sea, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Left
- Toxicology
- Performed
- Flight hours
- 4,700 total · 150 in this make and model · 4,300 as pilot in command · 400 in the last 90 days · 100 in the last 30 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Night/bright
- Wind
- 230° at 5 knots
- Visibility
- 7 statute miles
- Lowest ceiling
- None
- Temperature
- 12 °F, dew point 16 °F
- Altimeter
- 29.00 inHg
- Observed at
- SCC
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N20752 · 7
Matched to the same aircraft by N-number and date.