Runway excursion after brake failure on light transport cpr jet.

Attributes
ACN	217921
Time
Date	199208
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cps
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	landing other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : captain instruction : trainee
Qualification	pilot : atp
Experience	flight time last 90 days : 3 flight time total : 1900 flight time type : 850
ASRS Report	217921
Person 2
Affiliation	Other
Function	flight crew : first officer oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 30 flight time total : 13500
ASRS Report	217379
Events
Anomaly	aircraft equipment problem : critical incursion : runway other anomaly other anomaly other other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation other

Narrative:

Aircraft touched down approximately 1500 down 700 ft runway. Check pilot armed thrust reversers and I pulled up on the piggy backs. Only the left thrust reverser deployed. The check pilot stowed the right reverser lever and yelled to get on brakes. Aircraft veered to left and nosewheel steering was engaged. After aircraft returned to centerline, left reverser power was increased. As aircraft slowed to 60 KTS, left thrust reverser was stowed. Shortly after I yelled 'I have no brakes.' the check pilot pulled emergency brake and said pump brakes. Shortly after that the check pilot said 'I've got the airplane.' the controls were released to the check pilot. It was apparent to me that we were going to run off the end of the runway. I tried reverse again and only the left reverser deployed again. I then stowed both reverser levers as we left the runway at approximately 40 KTS. The aircraft left the runway, the field was rough and some rolling ditches. As the aircraft was coming to a stop, the check pilot secured the engines. The wheels and brakes were looked at after exiting the aircraft. Left outboard tire was blown from skidding, left brake was smoking, right brake was cold. Supplemental information from acn 217379: our landing gross weight was 15000 pounds (1000 pounds fuel). The landing distance for a 16000 pound airplane (lowest gross weight on the landing chart) with a 10 KT tailwind is 2800 ft antiskid on, or 3500 ft antiskid off. (This includes a 1000 ft float from the runway threshold to the touchdown zone). After stopping, we found the left brake hot and right brake cold. The left outboard tire on the left landing gear was found blown due to skidding. Right outboard was also flat-spotted. Other tires showed no sign of wear. This was the third time in 3 months that a brake malfunction had occurred on this airplane. Note: airplane was completing heavy maintenance. Tower cleared us by phone and handheld radio to enter the runway overrun with a tug and crew of men to recover the aircraft. I presumed this closed the runway. I then made photos of the tire tracks from the runway end to the stopping point. Unfortunately, the tower had not closed the runway. This made my presence on the runway end and overrun a technical runway incursion. A classic case of miscom.

Original NASA ASRS Text

Title: RWY EXCURSION AFTER BRAKE FAILURE ON LTT CPR JET.

Narrative: ACFT TOUCHED DOWN APPROX 1500 DOWN 700 FT RWY. CHK PLT ARMED THRUST REVERSERS AND I PULLED UP ON THE PIGGY BACKS. ONLY THE L THRUST REVERSER DEPLOYED. THE CHK PLT STOWED THE R REVERSER LEVER AND YELLED TO GET ON BRAKES. ACFT VEERED TO L AND NOSEWHEEL STEERING WAS ENGAGED. AFTER ACFT RETURNED TO CTRLINE, L REVERSER PWR WAS INCREASED. AS ACFT SLOWED TO 60 KTS, L THRUST REVERSER WAS STOWED. SHORTLY AFTER I YELLED 'I HAVE NO BRAKES.' THE CHK PLT PULLED EMER BRAKE AND SAID PUMP BRAKES. SHORTLY AFTER THAT THE CHK PLT SAID 'I'VE GOT THE AIRPLANE.' THE CTLS WERE RELEASED TO THE CHK PLT. IT WAS APPARENT TO ME THAT WE WERE GOING TO RUN OFF THE END OF THE RWY. I TRIED REVERSE AGAIN AND ONLY THE L REVERSER DEPLOYED AGAIN. I THEN STOWED BOTH REVERSER LEVERS AS WE LEFT THE RWY AT APPROX 40 KTS. THE ACFT LEFT THE RWY, THE FIELD WAS ROUGH AND SOME ROLLING DITCHES. AS THE ACFT WAS COMING TO A STOP, THE CHK PLT SECURED THE ENGS. THE WHEELS AND BRAKES WERE LOOKED AT AFTER EXITING THE ACFT. L OUTBOARD TIRE WAS BLOWN FROM SKIDDING, L BRAKE WAS SMOKING, R BRAKE WAS COLD. SUPPLEMENTAL INFO FROM ACN 217379: OUR LNDG GROSS WT WAS 15000 POUNDS (1000 POUNDS FUEL). THE LNDG DISTANCE FOR A 16000 POUND AIRPLANE (LOWEST GROSS WT ON THE LNDG CHART) WITH A 10 KT TAILWIND IS 2800 FT ANTISKID ON, OR 3500 FT ANTISKID OFF. (THIS INCLUDES A 1000 FT FLOAT FROM THE RWY THRESHOLD TO THE TOUCHDOWN ZONE). AFTER STOPPING, WE FOUND THE L BRAKE HOT AND R BRAKE COLD. THE L OUTBOARD TIRE ON THE L LNDG GEAR WAS FOUND BLOWN DUE TO SKIDDING. R OUTBOARD WAS ALSO FLAT-SPOTTED. OTHER TIRES SHOWED NO SIGN OF WEAR. THIS WAS THE THIRD TIME IN 3 MONTHS THAT A BRAKE MALFUNCTION HAD OCCURRED ON THIS AIRPLANE. NOTE: AIRPLANE WAS COMPLETING HVY MAINT. TWR CLRED US BY PHONE AND HANDHELD RADIO TO ENTER THE RWY OVERRUN WITH A TUG AND CREW OF MEN TO RECOVER THE ACFT. I PRESUMED THIS CLOSED THE RWY. I THEN MADE PHOTOS OF THE TIRE TRACKS FROM THE RWY END TO THE STOPPING POINT. UNFORTUNATELY, THE TWR HAD NOT CLOSED THE RWY. THIS MADE MY PRESENCE ON THE RWY END AND OVERRUN A TECHNICAL RWY INCURSION. A CLASSIC CASE OF MISCOM.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.