75-16-09 ROLLS ROYCE (1971) LIMITED: Amendment 39-2281. Applies to Rolls Royce RB 211 series engines, serial numbers 10479 and prior.
Compliance required before September 1, 1975, unless already accomplished.
To prevent engine loss of oil and possible inflight engine shutdown, modify the HS external gearbox oil tank filler cap and housing in accordance with Rolls Royce (1971) Limited Service Bulletin RB211-72-3533, dated August 12, 1974, or an FAA-approved equivalent.
This amendment becomes effective August 27, 1975.