A-98-007
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FAA: REQUIRE THE BOEING COMMERCIAL AIRPLANE GROUP TO MAKE AN ADDITION TO THE FAA APPROVED AIRPLANE FLIGHT MANUAL & ABNORMAL PROCEDURES TO STATE THAT SEVERE VIBRATION OF THE RUBBER & RUDDER PEDALS MAY BE EXPERIENCED IF THE MAIN WHEEL BRAKES ARE APPLIED WHILE AIRBORNE & TO DESCRIBE CORRECTIVE ACTION NECESSARY TO TERMINATE THE VIBRATION, FOR BOEING 737 AIRPLANES ARE SUBJECT TO BRAKING SYSTEM VIBRATIONS FROM AIRBORNE BRAKE APPLICATION.
In plain language (FlightFinder summary)
The FAA is asked to require Boeing to update the airplane flight manual and abnormal procedures for Boeing 737 airplanes that are subject to braking system vibrations from airborne brake application. The addition must state that severe vibration of the rubber and rudder pedals may occur if the main wheel brakes are applied while airborne, and must describe the corrective action needed to stop the vibration.
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 Alternate Action |
|---|---|
| Mode | Aviation |
| Closed | Dec 16, 1999 |
| NTSB number | 79534 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).