Medium large transport damaged when pushback attempted with parking brake set.

Attributes
ACN	140346
Time
Date	199003
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : cvg
State Reference	OH
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	ground : parked
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : flight engineer pilot : instrument pilot : atp
Experience	flight time last 90 days : 180 flight time total : 4000 flight time type : 1000
ASRS Report	140346
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 113 flight time total : 9277 flight time type : 663
ASRS Report	140140
Events
Anomaly	non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

During pushback from gate captain told the tug driver that the, 'brakes were released, cleared to push.' the brakes were in fact not released and when the tug pushed, it ripped and bent backward the vertical nose gear strut. As a result, the aft sustained extensive damage which was subsequently repaired. The 15 passenger and crew members then left the aircraft normally via the main cabin door. No injuries! On the panel there are no lights or indications to show you if the brakes are set or not. The only way to tell if they're set is for the captain to press down on the brake pedals and/or reach to his left to feel if the brake handle is slightly elevated. Neither one of these options was exercised.

Original NASA ASRS Text

Title: MLG DAMAGED WHEN PUSHBACK ATTEMPTED WITH PARKING BRAKE SET.

Narrative: DURING PUSHBACK FROM GATE CAPT TOLD THE TUG DRIVER THAT THE, 'BRAKES WERE RELEASED, CLRED TO PUSH.' THE BRAKES WERE IN FACT NOT RELEASED AND WHEN THE TUG PUSHED, IT RIPPED AND BENT BACKWARD THE VERTICAL NOSE GEAR STRUT. AS A RESULT, THE AFT SUSTAINED EXTENSIVE DAMAGE WHICH WAS SUBSEQUENTLY REPAIRED. THE 15 PAX AND CREW MEMBERS THEN LEFT THE ACFT NORMALLY VIA THE MAIN CABIN DOOR. NO INJURIES! ON THE PANEL THERE ARE NO LIGHTS OR INDICATIONS TO SHOW YOU IF THE BRAKES ARE SET OR NOT. THE ONLY WAY TO TELL IF THEY'RE SET IS FOR THE CAPT TO PRESS DOWN ON THE BRAKE PEDALS AND/OR REACH TO HIS LEFT TO FEEL IF THE BRAKE HANDLE IS SLIGHTLY ELEVATED. NEITHER ONE OF THESE OPTIONS WAS EXERCISED.

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.