- Date
- July 20, 1987, 22:19 local (Jul 21, 1987, 03:19 UTC)
- Place
- Chicago, IL
- Injuries
- 1 fatal
- Damage
- Destroyed
- Phase of flight
- Initial climb
- Aircraft
- N3742CCessna 402B
- Weather
- Visual (VMC) · Night/dark
- Status
- Completed · report November 15, 1989
- Report
- Approved by Office Director
- FAA report
- 19870720035489A
- Case key
- 13649
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
Failure of maintenance personnel to perform proper installation of the left throttle linkage.
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
On initial climb the pilot reported 'just lost one', followed by a loss of control and descent into a residential area. Subsequent investigation revealed a loose connection between the left engine throttle serrated washer and the serrated shaft. The engine had been removed and reinstaled a few flight hours prior to the occurrence.
Aircraft
- Registration
- N3742C
- Reported as
- Cessna 402B
- Category
- Airplane
- Serial number
- 402B0600
- Airframe hours
- 2,597
- Engine
- Continental TSIO-520-E8B, 300 horsepower, reciprocating
- Damage
- Destroyed
- Fire
- On-Ground
- Flight
- Part 135
- Registered owner
- Air Maryland
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Continuous airworthiness · December 12, 1986 · 78 hours before
- Departed
- MDW · Chicago, IL
- Destination
- MKC · Kansas City, MO
- Flight plan
- IFR
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
- 33
- Certificates
- Airline transport, Flight instructor
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Left
- Toxicology
- Performed
- Flight hours
- 3,200 total · 2,800 as pilot in command
Weather
- Conditions
- Visual (VMC) · Night/dark
- Wind
- 60° at 7 knots
- Visibility
- 7 statute miles
- Lowest ceiling
- 5,500 ft overcast
- Temperature
- 70 °F, dew point 66 °F
- Altimeter
- 30.00 inHg
- Observed at
- MDW, 1 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.