 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B757-200 in climb encountered icing. Had amber vibration indications on left engine. Out of icing; vibrations increased to 3.2. Diverted.
| Attributes | |
| ACN | 695374 |
| Time | |
| Date | 200604 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 36000 |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 695374 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance flight crew : diverted to another airport |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication |
| Primary Problem | Aircraft |
Narrative:
Climbing out; encountered icing during climb out. Some amber indications on vibration #1 engine. After getting on top and out of icing anti-ice was shut off. Could not get vibrations to stop. Tried QRH checklist to no avail. Vibrations could be felt in aircraft. Instead of getting better; vibrations go worse. 3.2 on amber scale. Could not get vibrations to stop except at 70% or less N1. After several minutes I decided to land. Callback conversation with reporter revealed the following information: the reporter stated the maintenance action taken at the diversion station is unknown other than the airplane was taken out of service.
Original NASA ASRS Text
Title: A B757-200 IN CLIMB ENCOUNTERED ICING. HAD AMBER VIBRATION INDICATIONS ON LEFT ENGINE. OUT OF ICING; VIBRATIONS INCREASED TO 3.2. DIVERTED.
Narrative: CLBING OUT; ENCOUNTERED ICING DURING CLBOUT. SOME AMBER INDICATIONS ON VIBRATION #1 ENG. AFTER GETTING ON TOP AND OUT OF ICING ANTI-ICE WAS SHUT OFF. COULD NOT GET VIBRATIONS TO STOP. TRIED QRH CHECKLIST TO NO AVAIL. VIBRATIONS COULD BE FELT IN ACFT. INSTEAD OF GETTING BETTER; VIBRATIONS GO WORSE. 3.2 ON AMBER SCALE. COULD NOT GET VIBRATIONS TO STOP EXCEPT AT 70% OR LESS N1. AFTER SEVERAL MINUTES I DECIDED TO LAND. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE REPORTER STATED THE MAINTENANCE ACTION TAKEN AT THE DIVERSION STATION IS UNKNOWN OTHER THAN THE AIRPLANE WAS TAKEN OUT OF SERVICE.
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.