A-75-024
NTSB Safety Recommendation — Aviation
Recommendation text
GATHER ACCURATE ENGINE PERFORMANCE INFORMATION FROM SELECTED IN-SERVICE CASES OF BIRD INGESTION BY LARGE TURBOFAN ENGINES WHICH RESULTED IN ENGINE SHUTDOWN, SERIOUS THRUST LOSS, OR EXCESSIVE VIBRATION. THIS INFORMATION, IN COMBINATION WITH THE MOST RECENT ORNITHOLOGICAL DATA AND ADVANCES IN ENGINE TECHNOLOGY, SHOULD BE USED TO EVALUATE THE ADEQUACY OF BIRD INGESTION CRITERIA FOR LARGE TURBOFAN ENGINES.
In plain language (FlightFinder summary)
Engine performance data from in-service bird ingestion events that caused engine shutdown, serious thrust loss, or excessive vibration should be collected. This data, combined with current ornithological information and engine technology advances, should be used to evaluate the adequacy of bird ingestion criteria for large turbofan engines.
This plain-language summary is written by FlightFinder to explain the recommendation above. It is not the official wording — the verbatim NTSB text is quoted above.
Details
| Status | Closed - Acceptable Action |
|---|---|
| Mode | Aviation |
| Closed | Dec 3, 1975 |
| NTSB number | DCA75AZ005 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).