outhouse
21st Jul 2007, 07:38
ACCIDENT TO SIKORSKY S61N, G-BBHM, AT POOLE, DORSET ON 15 JULY 2002
(HELICOPTER FORCE LANDED AND BURNT OUT AFTER ENGINE FIRE WARNINGS)
With little more to doooo just now I have been drifting through some of the Threads in the back pages. The one “Engine fire in flight question” by flying shrink, looked interesting so looking for a good read, followed the thread and found the comments by Spacer and the link to the CAA regarding the follow up report on the above S61N emergency.
I found the report informative and unfortunately it seemed familiar and almost a re-run of an incidence that occurred to a then British International S 61 back in the early/mid 1990’s. This was caused by a similar failure in the No5 Bearing, oil seal leaking oil into the aft support tube and torching from the high speed shaft (engine shut down). The fire was in fact a MGB fire ignited by the torching engine oil and subsequently the second engine showed a fire warning. The crew did an exemplary job, there followed water landing and evacuation to the comfort of a rubber raft and safe pick up. The 61 continued to burn and was destroyed down to the cabin floor pan. After sinking she was recovered and the AIB carried out an investigation and produced findings.
I had since felt that with the introduction of an integrated FR and HUMS system monitoring and trending transmission and engine vibration levels and in this case now monitoring turbine and high speed shaft frequencies that a repeat of the earlier incidence was extremely unlightly. Seems not in this case.
History will repeat it’s self if actions or recommendations that are specifically placed to prevent similar occurrences get lost in the mist of time, thus leaving the barn door open and the chance for some one else to get bitten in the posterior.
It may sound like an old aviator rambling but felt the story was worth a post.
Outhouse.
(HELICOPTER FORCE LANDED AND BURNT OUT AFTER ENGINE FIRE WARNINGS)
With little more to doooo just now I have been drifting through some of the Threads in the back pages. The one “Engine fire in flight question” by flying shrink, looked interesting so looking for a good read, followed the thread and found the comments by Spacer and the link to the CAA regarding the follow up report on the above S61N emergency.
I found the report informative and unfortunately it seemed familiar and almost a re-run of an incidence that occurred to a then British International S 61 back in the early/mid 1990’s. This was caused by a similar failure in the No5 Bearing, oil seal leaking oil into the aft support tube and torching from the high speed shaft (engine shut down). The fire was in fact a MGB fire ignited by the torching engine oil and subsequently the second engine showed a fire warning. The crew did an exemplary job, there followed water landing and evacuation to the comfort of a rubber raft and safe pick up. The 61 continued to burn and was destroyed down to the cabin floor pan. After sinking she was recovered and the AIB carried out an investigation and produced findings.
I had since felt that with the introduction of an integrated FR and HUMS system monitoring and trending transmission and engine vibration levels and in this case now monitoring turbine and high speed shaft frequencies that a repeat of the earlier incidence was extremely unlightly. Seems not in this case.
History will repeat it’s self if actions or recommendations that are specifically placed to prevent similar occurrences get lost in the mist of time, thus leaving the barn door open and the chance for some one else to get bitten in the posterior.
It may sound like an old aviator rambling but felt the story was worth a post.
Outhouse.