Loss of aircraft control in a ramp operation as brakes and nosewheel steering fail on a single engin...

Attributes
ACN	343356
Time
Date	199608
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lyh
State Reference	VA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Jetstream 32
Operating Under FAR Part	Part 91
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 110 flight time total : 6000 flight time type : 4000
ASRS Report	343356
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 140 flight time total : 4000 flight time type : 2300
ASRS Report	344413
Events
Anomaly	aircraft equipment problem : critical conflict : ground critical other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Came out to airplane, and performed normal preflight duties, while first officer did his preflight. With everything normal, continued with acceptance checklist and before start checklist. Proceeded to start #2 engine (internal start) with everything normal. I then went through my after start flow and told the first officer that let's move away from the hangar, so the mechanics don't have to listen to the noise. I then proceeded to taxi single engine away from the hangar, with the intention of stopping 100 yards or so. Then after the batteries recovered, start #1 engine and taxi to the runway. After moving forward a little, I realized the steering tiller had no response. I then went to use the toe brakes and got no response there either. At this point, I tried the emergency parking brake, which had no response either. At this point, I realized we were going to hit the hangar, so I shut down #2 engine and coasted to a stop. This is when the wingtip struck the hangar. Supplemental information from acn 344413: contributing factor: slight slope down from parking point to hangar wall.

Original NASA ASRS Text

Title: LOSS OF ACFT CTL IN A RAMP OP AS BRAKES AND NOSEWHEEL STEERING FAIL ON A SINGLE ENG TAXI PROC. ACFT DAMAGE.

Narrative: CAME OUT TO AIRPLANE, AND PERFORMED NORMAL PREFLT DUTIES, WHILE FO DID HIS PREFLT. WITH EVERYTHING NORMAL, CONTINUED WITH ACCEPTANCE CHKLIST AND BEFORE START CHKLIST. PROCEEDED TO START #2 ENG (INTERNAL START) WITH EVERYTHING NORMAL. I THEN WENT THROUGH MY AFTER START FLOW AND TOLD THE FO THAT LET'S MOVE AWAY FROM THE HANGAR, SO THE MECHS DON'T HAVE TO LISTEN TO THE NOISE. I THEN PROCEEDED TO TAXI SINGLE ENG AWAY FROM THE HANGAR, WITH THE INTENTION OF STOPPING 100 YARDS OR SO. THEN AFTER THE BATTERIES RECOVERED, START #1 ENG AND TAXI TO THE RWY. AFTER MOVING FORWARD A LITTLE, I REALIZED THE STEERING TILLER HAD NO RESPONSE. I THEN WENT TO USE THE TOE BRAKES AND GOT NO RESPONSE THERE EITHER. AT THIS POINT, I TRIED THE EMER PARKING BRAKE, WHICH HAD NO RESPONSE EITHER. AT THIS POINT, I REALIZED WE WERE GOING TO HIT THE HANGAR, SO I SHUT DOWN #2 ENG AND COASTED TO A STOP. THIS IS WHEN THE WINGTIP STRUCK THE HANGAR. SUPPLEMENTAL INFO FROM ACN 344413: CONTRIBUTING FACTOR: SLIGHT SLOPE DOWN FROM PARKING POINT TO HANGAR WALL.

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.

Loss of aircraft control in a ramp operation as brakes and nosewheel steering fail on a single engine taxi procedure. Aircraft damage.