72-01-02 BEECH: Amdt. 39-1371. Applies to following airplanes:
MODELS
SERIAL NUMBERS AFFECTED
95-55
TC-1 thru TC-190
95-A55
TC-191 thru TC-501 (except TC-350 & TC-371)
95-B55 and 95-B55A
TC-371, TC-520 thru TC-1409
95-B55B
TF-1 thru TF-70
95-C55 and 95-C55A
TC-350, TE-1 thru TE-451
D55 and D55A
TE-452 thru TE-767
E55 and E55A
TE-768 thru TE-846
58 and 58A
TH-1 thru TH-173
Compliance: Required as indicated, unless already accomplished.
To prevent engine damage from loss of lubricant due to accidental opening of oil sump drains by age stiffened plastic drain hoses, within 25 hours' time in service after the effective date of this AD, accomplish the following:
Remove the oil drain tubes from the sump drain valves.
Beechcraft Service Instructions No. 0473-241 pertains to this same subject.
This amendment becomes effective January 5, 1972.