- Date
- May 29, 1987, 15:04 local (19:04 UTC)
- Place
- Mt Holley Sprgs, PA
- Injuries
- 1 minor
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N705XSchleicher ASW-20L
- Weather
- Visual (VMC) · Day
- Status
- Completed · report March 31, 1989
- Report
- Approved by Office Director
- Case key
- 30438
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
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
Just before touchdown, during an off-arpt landing, the plt tried to extend the flaps from a 30 deg position to full down (55 deg). He said that due to his short stature & seat position, he had difficulty positioning his left arm to do this. As he tried to apply full flaps, they inadvertently retracted to a negative 11 deg position. The glider then pitched down from about 6 to 8 ft AGL & was damaged.
Aircraft
- Registration
- N705X
- Reported as
- Schleicher ASW-20L
- Category
- Glider
- Serial number
- 20464
- Airframe hours
- 178
- Engine
- unknown
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Charles F Yahrling
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Unknown · September 7, 1986 · 7 hours before
- Departed
- W73 · Fairfield, PA
- Destination
- W54 · Westminister, MD
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
- 36
- Certificate
- Private
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Seat
- Center
- Flight hours
- 454 total · 196 in this make and model · 402 as pilot in command · 21 in the last 90 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 360° at 8 knots
- Visibility
- 5 statute miles
- Lowest ceiling
- None
- Temperature
- 91 °F, dew point 70 °F
- Observed at
- CXY, 17 nm away