MIA94LA149

NTSB accident investigation · Beech 65 · Pensacola, FL · May 23, 1994

Accident · Serious injuriesLimited investigationFinal report
Date
May 23, 1994, 16:44 local (21:44 UTC)
Place
Pensacola, FL
Injuries
1 serious, 1 uninjured; on the ground: 1 serious
Damage
Minor damage
Phase of flight
Taxi
Aircraft
N6166YBeech 65
Weather
Visual (VMC) · Day
Status
Completed · report April 7, 1995
Report
Approved by Office Director
Case key
37551

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

Improper installation of nuts on the nosewheel (split rim) through-bolts by unknown personnel, which resulted in a subsequent failure (separation of the wheel halves).

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.

Airframe/component/system failure/malfunctionTaxi - to takeoff
Maintenance,installation - improperUnknownCause
Miscellaneous,bolt/nut/fastener/clamp/spring - improperCause
Landing gear,wheel - failureCause

Analysis

As the pilot was making a left turn after starting to taxi, the aircraft's nosewheel assembly came apart (exploded) and one split rim struck a ground observer, severing his leg. Examination revealed that the nuts on the through-bolts for the split rim were improper and that the tires may have been over-inflated. The airplane records were not complete. The investigation did not ascertain who had installed the wrong nuts or when the installion had been performed.

Factual narrative

On May 24, 1994, about 1644 central daylight time, N6166Y a Beech BE-65 was involved in a taxi accident at Pensacola Naval Air Station, Pensacola, Florida. The airplane was registered to Smith/Perkins Inc. and was operating as a 14 CFR 91 ferry flight. The airplane received minor damage and one person on the ground received serious injuries. The pilot and his passenger were not injured. Visual meteorological conditions prevailed and a military VFR flight plan was filed along with a weather briefing obtained from a Navy meteorologist. The flight was originating at the time of the accident.

The airplane started its taxi from the ramp when the nose wheel split rim exploded. A piece of the tire rim severed a ground observer's leg. Investigation revealed that the nuts on the through bolts for the split rims were improper, and the tires may have been over inflated with bottled dry nitrogen.

The pilot-in-command had also acquired a ferry permit that specifically stated it would be conducted with certain limitations, including, carriage of cargo or persons other than crew for the purpose of the flight would be prohibited.

Aircraft

Registration
N6166Y
Reported as
Beech 65
Category
Airplane
Serial number
LD388
Airframe hours
4,417
Engine
Lycoming IO-435, 340 horsepower, reciprocating
Damage
Minor damage
Flight
Ferry · Part 91
Operator
Perkins Smith Inc.
Registered owner
Perkins Smith Inc.
Airworthiness certificate
Special, Special flight (Special)
Flight plan
VFR
Airport
NPA · Nas Sherman Field

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
67
Certificates
Airline transport, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
29,443 total · 11 in this make and model · 22,800 as pilot in command · 15 in the last 90 days · 5 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 11 knots
Visibility
6 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 61 °F
Altimeter
30.00 inHg
Observed at
NPA, 1 nm away