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An EMB145 returned to the field due to unable to raise the landing gear. Airplane remained in ground mode. Found weight on wheel switch failed.
| Attributes | |
| ACN | 666374 |
| Time | |
| Date | 200507 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower tracon : edff.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 666374 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : landing gear unsafe light other flight crewa other flight crewb |
| Resolutory Action | flight crew : diverted to another airport flight crew : overcame equipment problem other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : logbook entry performance deficiency : testing performance deficiency : non compliance with legal requirements performance deficiency : inspection performance deficiency : fault isolation |
| Supplementary | |
| Problem Areas | Chart Or Publication Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
After departing ZZZ; unable to raise the landing gear. Handle would not move. Received air/ground fail message on EICAS. Contacted maintenance and dispatch advised to return to ZZZ. Declared emergency as a precaution and landed well under maximum landing weight. After landing; received weight on wheel inoperative message on EICAS along with stall warnings; gust lock would not lock also. Taxied to gate without further incident. Returned for landing due to just departing ZZZ and aircraft already had an MEL for pressurization inoperative due to service door leak. If maintenance work is done on main gear; then ensure all weight on wheel switches are working properly; if it means maintenance test flight or swinging the gear at hangar.
Original NASA ASRS Text
Title: AN EMB145 RETURNED TO THE FIELD DUE TO UNABLE TO RAISE THE LNDG GEAR. AIRPLANE REMAINED IN GND MODE. FOUND WT ON WHEEL SWITCH FAILED.
Narrative: AFTER DEPARTING ZZZ; UNABLE TO RAISE THE LNDG GEAR. HANDLE WOULD NOT MOVE. RECEIVED AIR/GROUND FAIL MESSAGE ON EICAS. CONTACTED MAINT AND DISPATCH ADVISED TO RETURN TO ZZZ. DECLARED EMER AS A PRECAUTION AND LANDED WELL UNDER MAX LNDG WEIGHT. AFTER LNDG; RECEIVED WEIGHT ON WHEEL INOP MESSAGE ON EICAS ALONG WITH STALL WARNINGS; GUST LOCK WOULD NOT LOCK ALSO. TAXIED TO GATE WITHOUT FURTHER INCIDENT. RETURNED FOR LNDG DUE TO JUST DEPARTING ZZZ AND ACFT ALREADY HAD AN MEL FOR PRESSURIZATION INOP DUE TO SVC DOOR LEAK. IF MAINT WORK IS DONE ON MAIN GEAR; THEN ENSURE ALL WEIGHT ON WHEEL SWITCHES ARE WORKING PROPERLY; IF IT MEANS MAINT TEST FLT OR SWINGING THE GEAR AT HANGAR.
Data retrieved from NASA's ASRS site as of January 2009 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.