MIA98LA148

NTSB accident investigation · Bell 206L-1 · Orlando, FL · April 25, 1998

Accident · No injuriesLimited investigationFinal report
Date
April 25, 1998, 15:30 local (19:30 UTC)
Place
Orlando, FL
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N60WJBell 206L-1
Weather
Visual (VMC) · Day
Status
Completed · report December 31, 1998
Report
Approved by Office Director
FAA report
19980425007729A
Case key
38512

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

failure of the flight crew to maintain main rotor RPM during a landing touchdown, which resulted in the main rotor blades contacting the tailboom.

Analysis

The flight instructor (CFI) and student pilot flew for 1 hour 35 minutes in the airport area. During the flight, they performed training maneuvers, touchdown autorotations, hovering autorotations, and simulated tail rotor malfunctions. After returning to the ramp after the flight, company maintenance personnel found damage consistent with the main rotor blades contacting the tailboom. The CFI and student stated they did not know when the damage occurred and that they did not feel any vibration to suggest damage during the flight.

Factual narrative

On April 25, 1998, about 1530 eastern daylight time, a Bell 206L-1, N60WJ, registered to Universal Air Service of Florida, Inc., was found to have damage from main rotor contact with the tail boom at Orlando Executive Airport, Orlando, Florida, following a Title 14 CFR Part 91 instructional flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The helicopter received substantial damage and the commercial-rated flight instructor and private-rated dual student were not injured. The flight originated from Orlando, Florida, the same day, about 1355.

The instructor and dual student stated the flight was conducted as an instructional flight as part of a Bell Helicopter school. They departed Orlando Executive Airport about 1355, and stayed on the airport for the entire flight. During the first part of the flight, they performed touchdown autorotations. After completing the flight at about 1530, they were completing paperwork when maintenance personnel informed them about damage to the tailboom of the helicopter from a main rotor strike. They stated that at no time during the flight did they feel the main rotor contact the tailboom, and they did not feel any unusual vibrations during the flight.

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.

Miscellaneous/otherLanding
Rotor rpm - not maintainedFlightcrewCause
Misc rotorcraft,main rotor/tail boom contact

Aircraft

Registration
N60WJ
Reported as
Bell 206L-1
Category
Helicopter
Serial number
45276
Airframe hours
7,160
Engine
Allison 250-C28, 435 horsepower, turbo shaft
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Universal Air Service
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · April 21, 1998 · 11 hours before
Airport
ORL · Orlando Executive, runway 31, 4,638 × 100 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
54
Certificates
Private, Commercial, 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
14,970 total · 14,950 as pilot in command · 110 in the last 90 days · 45 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 45 °F
Altimeter
30.00 inHg
Observed at
ORL, 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.