 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An md-80 with the first officer flying rejected the takeoff due to no nose wheel steering or rudder movement with pedal input, caused by a stuck shuttle valve.
| Attributes | |
| ACN | 504326 |
| Time | |
| Date | 200103 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : takeoff roll |
| Route In Use | departure : other published ifr departure |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 504326 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : multi engine |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly |
| Independent Detector | other flight crewb |
| Resolutory Action | flight crew : rejected takeoff |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Environmental Factor Aircraft Maintenance Human Performance Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
After position and hold, first officer assumes PF for takeoff during initial roll. First officer/PF announces no rudder or NWS reaction to deflection of pedals. Ca commands abort. When first officer uses brakes-a slight grab is felt-thereafter all rudder and brake control for first officer/right side is normal, first officer exercised braking and NWS for 10 mins without any further problems. Discussion with maintenance control explained a shuttle valve/overnight bleed off on the right side is not common, but does occur occasionally. Maybe part of the control check on the taxi checklist should indicate the first officer right side be checked for smooth braking and rudder input to NWS. This occurance was a first for us and it would be much better to check during initial taxi. Callback conversation with reporter revealed the following information: the reporter stated the hydraulics on the left were switched to low about 2200 pounds pressure and everything was operating normally. The reporter said no steering or rudder displacement was felt or indicated on the takeoff roll and the takeoff was rejected. The reporter said he has 8 yrs on the md-80 and had never experienced this type of failure. The reporter stated after exercising the rudder and steering all was normal and the maintenance controllers explanation of a stuck shuttle valve was correct.
Original NASA ASRS Text
Title: AN MD-80 WITH THE FO FLYING REJECTED THE TKOF DUE TO NO NOSE WHEEL STEERING OR RUDDER MOVEMENT WITH PEDAL INPUT, CAUSED BY A STUCK SHUTTLE VALVE.
Narrative: AFTER POS AND HOLD, FO ASSUMES PF FOR TKOF DURING INITIAL ROLL. FO/PF ANNOUNCES NO RUDDER OR NWS REACTION TO DEFLECTION OF PEDALS. CA COMMANDS ABORT. WHEN FO USES BRAKES-A SLIGHT GRAB IS FELT-THEREAFTER ALL RUDDER AND BRAKE CTL FOR FO/R SIDE IS NORMAL, FO EXERCISED BRAKING AND NWS FOR 10 MINS WITHOUT ANY FURTHER PROBS. DISCUSSION WITH MAINT CTL EXPLAINED A SHUTTLE VALVE/OVERNIGHT BLEED OFF ON THE R SIDE IS NOT COMMON, BUT DOES OCCUR OCCASIONALLY. MAYBE PART OF THE CTL CHK ON THE TAXI CHKLIST SHOULD INDICATE THE FO R SIDE BE CHKED FOR SMOOTH BRAKING AND RUDDER INPUT TO NWS. THIS OCCURANCE WAS A FIRST FOR US AND IT WOULD BE MUCH BETTER TO CHK DURING INITIAL TAXI. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE HYDRAULICS ON THE L WERE SWITCHED TO LOW ABOUT 2200 LBS PRESSURE AND EVERYTHING WAS OPERATING NORMALLY. THE RPTR SAID NO STEERING OR RUDDER DISPLACEMENT WAS FELT OR INDICATED ON THE TKOF ROLL AND THE TKOF WAS REJECTED. THE RPTR SAID HE HAS 8 YRS ON THE MD-80 AND HAD NEVER EXPERIENCED THIS TYPE OF FAILURE. THE RPTR STATED AFTER EXERCISING THE RUDDER AND STEERING ALL WAS NORMAL AND THE MAINT CTLRS EXPLANATION OF A STUCK SHUTTLE VALVE WAS CORRECT.
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.