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E145 flight crew, dispatched with inoperative APU into deteriorating WX conditions, return to departure station when #4 generator fails.
| Attributes | |
| ACN | 631493 |
| Time | |
| Date | 200409 |
| Day | Wed |
| Place | |
| Locale Reference | airport : bos.airport |
| State Reference | MA |
| Environment | |
| Weather Elements | Rain |
| Aircraft 1 | |
| Controlling Facilities | tracon : a90.tracon tower : bos.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Embraer Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 631493 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical inflight encounter : weather |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : diverted to another airport flight crew : landed as precaution other |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Weather Aircraft Flight Crew Human Performance |
| Primary Problem | Airport |
Narrative:
Acquired aircraft with inoperative APU. After normal external air start, taxi, takeoff, #4 general fail EICAS alert during climb. Applied flight manual guidance checklist procedures and were unable to restore system. Due to dispatching into heavy rains and widespread low visibility, it only seemed prudent to return to base with the remaining 3 generators. Alternate airport requirement was far and few and I did not want to proceed with having to deal with the potential, however, remote chance of losing the engine with the remaining 2 operating generators.
Original NASA ASRS Text
Title: E145 FLT CREW, DISPATCHED WITH INOP APU INTO DETERIORATING WX CONDITIONS, RETURN TO DEP STATION WHEN #4 GENERATOR FAILS.
Narrative: ACQUIRED ACFT WITH INOP APU. AFTER NORMAL EXTERNAL AIR START, TAXI, TKOF, #4 GENERAL FAIL EICAS ALERT DURING CLB. APPLIED FLT MANUAL GUIDANCE CHKLIST PROCS AND WERE UNABLE TO RESTORE SYS. DUE TO DISPATCHING INTO HVY RAINS AND WIDESPREAD LOW VISIBILITY, IT ONLY SEEMED PRUDENT TO RETURN TO BASE WITH THE REMAINING 3 GENERATORS. ALTERNATE ARPT REQUIREMENT WAS FAR AND FEW AND I DID NOT WANT TO PROCEED WITH HAVING TO DEAL WITH THE POTENTIAL, HOWEVER, REMOTE CHANCE OF LOSING THE ENG WITH THE REMAINING 2 OPERATING GENERATORS.
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.