- Date
- July 23, 1999, 16:00 local (21:00 UTC)
- Place
- Tulsa, OK
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N6712WBeech C23
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 22, 2000
- Report
- Approved by Office Director
- FAA report
- 19990723009659A
- Case key
- 46929
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 pilot's failure to maintain the proper descent rate, which resulted in a hard landing.
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
During final landing approach the airplane touched down hard resulting in substantial damage. The pilot was demonstrating a power off landing. During the landing flare, he noticed that his 'aiming point' was 'moving in the wrong direction.' He 'immediately tried to add power and as [he] was doing this [he] arrived at the ground - 3 pointed the aircraft, which resulted in damage.' The pilot stated that the runway had 'a large drop from about 50 percent of the length to the north.' He further stated that he thought 'the gradual loss of headwind when [he] descended below the crest of the runway, and the resultant loss of translational lift, allowed an increase in descent rate that went undetected until the flare.'
Factual narrative
On July 23, 1999, at 1600 central daylight time, a Beech C23 airplane, N6712W, was substantially damaged during a hard landing at the Tulsa International Airport, Tulsa, Oklahoma. The airline transport rated pilot and his pilot-rated passenger were not injured. The airplane was registered to Tulsair Beechcraft Inc. of Tulsa and operated by the pilot. No flight plan was filed and visual meteorological conditions prevailed for the 14 Code of Federal Regulations Part 91 personal cross-country flight, which originated from Wichita, Kansas, approximately 1500.
According to the pilot, he was demonstrating a "power off landing when out of normal approach position." On final approach to runway 18R, "all appeared normal." The "airspeed was 60 kts," and the rate of descent was "approximately 500 feet/min." During the landing flare, the pilot noticed that his "aiming point" was "moving in the wrong direction." He "immediately tried to add power and as [he] was doing this [he] arrived at the ground - 3 pointed the aircraft, which resulted in damage."
The pilot stated that runway 18R "has a large drop from about 50 percent of the length to the north." He further stated that he thought "the gradual loss of headwind when [he] descended below the crest of the runway, and the resultant loss of translational lift, allowed an increase in descent rate that went undetected until the flare."
An FAA inspector examined the airplane and reported that the right main and nose landing gear assemblies were separated, the firewall was buckled, and the left wing's forward spar was damaged.
Aircraft
- Registration
- N6712W
- Reported as
- Beech C23
- Category
- Airplane
- Serial number
- M-2251
- Airframe hours
- 2,401
- Engine
- Lycoming O-360-A4R, 180 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- David L. Williams
- Registered owner
- Tulsair Beechcraft Inc.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · September 30, 1998 · 47 hours before
- Departed
- BEC · Wichita, KS
- Destination
- TUL
- Airport
- TUL · Tulsa International, runway 18R, 6,101 × 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
- 52
- Certificates
- Airline transport, Flight instructor
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Right
- Flight hours
- 13,400 total · 8 in this make and model · 11,600 as pilot in command · 195 in the last 90 days · 73 in the last 30 days · 6 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 170° at 8 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 95 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.