 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Engine bleed EICAS message and requirement for engine heat result in failed left bleed and loss of pressurization. Descend to lower altitude and reset bleed; continue to destination at lower altitude.
| Attributes | |
| ACN | 752359 |
| Time | |
| Date | 200709 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : syr.vortac |
| State Reference | NY |
| Altitude | msl single value : 33000 |
| Environment | |
| Flight Conditions | IMC |
| Aircraft 1 | |
| Controlling Facilities | artcc : zbw.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : vacating altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 240 flight time total : 20000 flight time type : 3000 |
| ASRS Report | 752359 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : eicas warning other flight crewa |
| Resolutory Action | controller : provided flight assist flight crew : exited adverse environment |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
High stage bleed right engine EICAS. Ran checklist; sent mrm. Later in climb; engine heat needed. Accomplished per high stage bleed checklist. After several mins; left bleed tripped. Donned oxygen masks and coordination with ATC for lower altitude; as first officer requested lower altitude. I began rapid descent as checklist for left bleed trip was completed by first officer. Cabin altitude was climbing at 400 FPM. Restored left bleed as we descended through FL260. Regained control of cabin pressurization and continued descent to FL180. Called first flight attendant to advise of aircraft condition and status of flight. Flight continued normally at FL180 to destination.
Original NASA ASRS Text
Title: ENGINE BLEED EICAS MESSAGE AND REQUIREMENT FOR ENGINE HEAT RESULT IN FAILED LEFT BLEED AND LOSS OF PRESSURIZATION. DESCEND TO LOWER ALT AND RESET BLEED; CONTINUE TO DESTINATION AT LOWER ALT.
Narrative: HIGH STAGE BLEED R ENG EICAS. RAN CHKLIST; SENT MRM. LATER IN CLB; ENG HEAT NEEDED. ACCOMPLISHED PER HIGH STAGE BLEED CHKLIST. AFTER SEVERAL MINS; L BLEED TRIPPED. DONNED OXYGEN MASKS AND COORD WITH ATC FOR LOWER ALT; AS FO REQUESTED LOWER ALT. I BEGAN RAPID DSCNT AS CHKLIST FOR L BLEED TRIP WAS COMPLETED BY FO. CABIN ALT WAS CLBING AT 400 FPM. RESTORED L BLEED AS WE DSNDED THROUGH FL260. REGAINED CTL OF CABIN PRESSURIZATION AND CONTINUED DSCNT TO FL180. CALLED FIRST FLT ATTENDANT TO ADVISE OF ACFT CONDITION AND STATUS OF FLT. FLT CONTINUED NORMALLY AT FL180 TO DEST.
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.