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19970730020879A

Accident · Substantial damage
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FAA accident report · Boeing B75N1 · Lone Rock, WI · July 30, 1997

FAA Aviation Safety Information Portal

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Date
July 30, 1997
Place
Lone Rock, WI
Damage
Substantial damage
Aircraft
N75939
NTSB investigation
NTSBCHI97LA242
Reported as
Boeing B75N1
Fatal injuries
0
N75939Registered now · Boeing B75N1S/N 75-1266Airframe modelBoeing B75N1Engine modelPratt & Whitney R-985 seriesReciprocating

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Aircraft right brake locked causing aircraft to ground loop and damage lower left wing pane. (-23) (hayes brakes) r.h. brake lining was contaminated with oil. This condition will cause brakes to drag or lock-up. Contamination was caused by a crankcase vent line routed down the landing gear strut (experimental mvd.)

As the FAA filed it

AIRCRAFT RIGHT BRAKE LOCKED CAUSING AIRCRAFT TO GROUND LOOP AND DAMAGE LOWER LEFT WING PANE. (-23) (HAYES BRAKES) R.H. BRAKE LINING WAS CONTAMINATED WITH OIL. THIS CONDITION WILL CAUSE BRAKES TO DRAG OR LOCK-UP. CONTAMINATION WAS CAUSED BY A CRANKCASE VENT LINE ROUTED DOWN THE LANDING GEAR STRUT (EXPERIMENTAL MVD.)

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB CHI97LA242Accident · No injuriesLimited investigationFinal reportLone Rock, WIa locked right brake which resulted in the pilot's inability to maintain direction control of the airplane during the landing roll.Jul 30, 1997 · Substantial damage

Other reports on N75939 · 2

Matched to the same aircraft by N-number and date.

Incident 19850518036409IRoll-Out (Fixed Wing) · Frederick, OKBounced on landing and tail started to rise. Propeller struck ground and aircraft flipped onto its back.May 18, 1985 · Minor damageAccident 19791101029949ALow Level Operations · Crystal City, TXForced landing due to failure of cam drive rivets.Nov 1, 1979 · Substantial damage