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FA22 brake malfunction led to runway excursion. No aircraft or property damage occurred. Aircraft equipment problem left brake. Runway excursion.
| Attributes | |
| ACN | 321211 |
| Time | |
| Date | 199511 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : lws |
| State Reference | ID |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | SA-227 AC Metro III |
| Operating Under FAR Part | Part 121 |
| Flight Phase | landing other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 170 flight time total : 4300 flight time type : 1900 |
| ASRS Report | 321211 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other anomaly other other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : insufficient time other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Normal approach and landing on runway 29 in lewiston, identification. After touchdown the aircraft pulled slightly right as light braking and reverse thrust was applied. Correction to centerline was accomplished. As braking effort increased aircraft again began to pull to the right, this time with tendency not to correct back to centerline dispite attempts by the first officer, with differential braking. As the runway edge approached, maximum braking and full rudder pressure on the left side failed to return the aircraft to center and the aircraft left the runway approximately 1500 ft from the departure end on the north side. The captain engaged the nose wheel steering and brought the aircraft back to the runway. Missing a single runway light. Maintenance concluded, after visual and high speed taxi tests that the left brake(south) were failing under medium to heavy braking loads, thus causing the pull to the right. No other damage was observed on the aircraft or the airport.
Original NASA ASRS Text
Title: FA22 BRAKE MALFUNCTION LED TO RWY EXCURSION. NO ACFT OR PROPERTY DAMAGE OCCURRED. ACFT EQUIP PROB L BRAKE. RWY EXCURSION.
Narrative: NORMAL APCH AND LNDG ON RWY 29 IN LEWISTON, ID. AFTER TOUCHDOWN THE ACFT PULLED SLIGHTLY R AS LIGHT BRAKING AND REVERSE THRUST WAS APPLIED. CORRECTION TO CENTERLINE WAS ACCOMPLISHED. AS BRAKING EFFORT INCREASED ACFT AGAIN BEGAN TO PULL TO THE R, THIS TIME WITH TENDENCY NOT TO CORRECT BACK TO CENTERLINE DISPITE ATTEMPTS BY THE FO, WITH DIFFERENTIAL BRAKING. AS THE RWY EDGE APCHED, MAX BRAKING AND FULL RUDDER PRESSURE ON THE L SIDE FAILED TO RETURN THE ACFT TO CENTER AND THE ACFT LEFT THE RWY APPROX 1500 FT FROM THE DEP END ON THE N SIDE. THE CAPT ENGAGED THE NOSE WHEEL STEERING AND BROUGHT THE ACFT BACK TO THE RWY. MISSING A SINGLE RWY LIGHT. MAINT CONCLUDED, AFTER VISUAL AND HIGH SPD TAXI TESTS THAT THE L BRAKE(S) WERE FAILING UNDER MEDIUM TO HVY BRAKING LOADS, THUS CAUSING THE PULL TO THE R. NO OTHER DAMAGE WAS OBSERVED ON THE ACFT OR THE ARPT.
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.