- Date
- April 25, 1993, 17:38 local (Apr 26, 1993, 00:38 UTC)
- Place
- Tucson, AZ
- Injuries
- 2 fatal
- Damage
- Destroyed
- Phase of flight
- Initial climb
- Aircraft
- N158WBBeech 58
- Weather
- Visual (VMC) · Day
- Status
- Completed · report November 19, 1993
- Report
- Approved by Office Director
- FAA report
- 19930425010419A
- Case key
- 27831
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 pilots improper preflight inspection, his failure to compeltely secure the aft utility door, and his failure to reconfigure the trim tabs to a takeoff setting. The utility door's sudden opening just after rotation and the effect of the nose up trim setting led to an inadvertent stall during the takeoff initial climb.
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
The pilot had recently purchased the twin engine airplane and had accumulated about 123 total hours of multi engine time, with about 115 hours in the accident airplane. Witnesses stated that just after rotation the airplane pitched up abruptly and rotated to the right impacting the ground about 2000 feet beyond the approximate point of rotation and about 1500 feet to the right of the runway center line. Post crash examination of the wreckage revealed that the aft utility doors were unlatched, with the aft door rotated rearward against the fuselage and the extension limiting hinges sheared at the hinge pin. The elevator trim tabs were found in the landing configuration with tab deflections at about 9 degrees down. The rudder trim tab was found 20 degrees left deflection. Both engines were removed to an engine overhaul facility for detailed examination. No mechanical discrepancies were found and power and rotation signatures were evident. The airplane was departing on runway 11L from taxiway 6 with a nine knot tailwind and 9950 feet of runway
Aircraft
- Registration
- N158WB
- Reported as
- Beech 58
- Category
- Airplane
- Serial number
- TH-396
- Airframe hours
- 2,310
- Engine
- Continental IO-520-C, 285 horsepower, reciprocating
- Damage
- Destroyed
- Fire
- On-Ground
- Flight
- Personal · Part 91
- Operator
- Jay M. Supkoff, doing business as S & H Aircraft Leasing
- Registered owner
- Supkoff, Jay
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · April 6, 1992 · 115 hours before
- Destination
- SJC · San Jose, CA
- Airport
- TUS · Tucson, runway 11, 10,994 × 150 ft, concrete
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
- 64
- Certificate
- Private
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Seat
- Left
- Toxicology
- Performed
- Flight hours
- 1,090 total · 123 in this make and model · 29 in the last 90 days · 5 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 310° at 9 knots
- Visibility
- 40 statute miles
- Lowest ceiling
- None
- Temperature
- 88 °F, dew point 25 °F
- Altimeter
- 29.00 inHg
- Observed at
- TUS, 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.