CHI05CA232

NTSB accident investigation · Let Blanik L-13 · Blair, NE · August 6, 2005

Accident · No injuriesData collectionFinal report
Date
August 6, 2005, 15:32 local (20:32 UTC)
Place
Blair, NE
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9295ZLet Blanik L-13
Weather
Visual (VMC) · Day
Status
Completed · report October 27, 2005
Report
Approved by Office Director
FAA report
20050806017019A
Case key
62331

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 low airspeed by the pilot and the inadequate supervision by the certified flight instructor.

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.

Hard landingLanding - flare/touchdown
Airspeed - lowDual studentCause
Supervision - inadequatePilot in command(cfi)Cause
Flare - improperPilot in command(cfi)Cause
In flight collision with terrain/waterLanding - flare/touchdown
Terrain condition - ground

Analysis

The glider received substantial damage during a hard landing. The certified flight instructor (CFI), seated in the rear seat, stated that he took the front seat pilot on the flight and allowed him to land the airplane during the accident landing. The CFI stated that while over the runway, "the sink rate quickly increased dramatically to a rate too high for a normal touchdown." He stated that the front seat pilot applied full back stick and the nose came up arresting the sink rate "significantly." The tail wheel initially contacted the ground which was followed by the main wheels. The CFI stated that he noted that the dive brakes were partially extended and didn't know if they had been closed and then reopened during rollout or remained open during landing.

Factual narrative

On August 6, 2005, at 1532 central daylight time, a Let Blanik L-13, N9295Z, operated by Omaha Soaring Club, received substantial damage during a hard landing on runway 13 (3,450 feet by 50 feet, asphalt) at Blair Municipal Airport, Blair, Nebraska. Visual meteorological conditions prevailed at the time of the accident. The 14 CFR Part 91 instructional flight was not operating on a flight plan. The certified flight instructor (CFI) and commercial rated pilot were uninjured. The local flight originated at 1513.

The CFI stated that the he agreed to take a visiting pilot on a flight. The CFI stated that he was seated in the rear seat of the airplane and was commercial pilot was seated in the front seat at the time of the accident landing. The CFI stated that while on final approach, they discussed and used dive brakes and slips. Approaching the threshold the CFI reportedly cautioned the commercial pilot to "keep the speed up." Over the runway, "the sink rate quickly increased dramatically to a rate too high for a normal touchdown." He stated that the commercial pilot applied full back stick, and the nose came up arresting the sink rate "significantly." The tail wheel initially contacted the runway which was then followed by the main wheels. The CFI stated that he noted that the dive brakes were partially extended and didn't know if they had been closed and then reopened during rollout or had remained open during landing.

According to the Federal Aviation Administration inspector, both pilots held CFI certificate with glider ratings. The front seat pilot was not current in gliders.

Aircraft

Registration
N9295Z
Reported as
Let Blanik L-13
Category
Glider
Serial number
26504
Engine
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Omaha Soaring Club
Airworthiness certificate
Special, Special flight (Special)
Departed
K46 · Blair, NE
Destination
K46 · Blair, NE

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
70
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2
Flight hours
21,700 total · 200 in this make and model · 18 in the last 90 days · 8 in the last 30 days
Role
Pilot
Age
54
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Helicopter, Airplane
Medical
Class 2
Flight hours
1,430 total · 6 in this make and model · 5 in the last 90 days

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.