78-19-01 ROLLS-ROYCE LIMITED (Formerly Rolls-Royce (1971) Limited): Amendment 39-3297. Applies to Model RB-211-22B engines which have high pressure turbine discs, part number and serial number as indicated, installed.
Compliance is required as indicated, unless already accomplished.
To ensure adequate life limit margin for, and to prevent failure of the high pressure turbine discs listed herein, accomplish the following:
(a) Permanently remove from service the following high pressure turbine discs before or upon reaching the flight cycle life limit shown.
Part No.
Serial No.
Revised Life Limit Flight cycles
LK48423
CQDY 107
2900
LK48423
CQDY 140
2900
LK48423
CQDY 130
2900
LK48423
CQDY 133
2900
LK48423
CQDY 134
2900
LK48423
CQDY 233
2900
LK53204
CQDY 334
4350
LK53204
CQDY 345
4350
LK53204
CQDY 389
4350
LK53204
CQDY 417
3500
LK53204
CQDY 419
4350
LK53204
CQDY 426
4350
LK53204
CQDY 427
3500
LK53204
CQDY 436
2500
LK53204
CQDY 449
4350
LK53204
CQDY 540
4350
LK53204
CQDY 578
3000
LK53204
CQDY 579
3000
LK53204
CQDY 581
4350
LK53204
CQDY 583
3500
LK69209 A2
CQDY 592
4350
LK53204
CQDY 624
2900
LK53204
CQDY 625
4350
LK53204
CQDY 627
3500
LK53204
CQDY 630
3600
LK53204
CQDY 631
4350
LK53204
CQDY 655
3500
LK53204
CQDY 702
4350
LK53204
CQDY 703
3500
LK53204
CQDY 712
4350
LK53204
CQDY 730
3500
LK69209
CQDY 740
4350
LK62143
CQDY 757
2250
LK53204
CQDY 770
4350
LK53204
CQDY 771
4350
LK53204
CQDY 805
2400
LK58998
CQDY 958
2250
LK58998
CQDY 964
2250
LK53204
CQDY 965
2250
LK58998
CQDY 976
2250
LK58998
CQDY 989
2250
LK69213
CQDY 996
4360
LK58998
CQDY 998
2250
LK58998
CQDY 1002
1200
LK58998
CQDY 1037
2250
LK58998
CQDY 1076
2250
LK58998
CQDY 1140
2250
NOTE: Rolls-Royce Limited Service Bulletin RB.211-72-4300, Revision 3, dated May 12, 1978, pertains to this same subject.
(b) Permanently remove from service the following high pressure turbine discs before or upon reaching 2900 flight cycles:
Part No.
Serial No.
LK53203
CQDY 241
LK48424
CQDY 242
LK53203
CQDY 257
LK53195
CQDY 309
LK53204
CQDY 428
LK53204
CQDY 657
LK53204
CQDY 678
LK53204
CQDY 697
LK53204
CQDY 773
LK53204
CQDY 951
LK69210
CQDY 1227
LK69210
CQDY 1419
NOTE: Rolls-Royce Limited Service Bulletin RB.211-72-4304, Revision 2, dated June 3, 1977, pertains to this same subject.
(c) In accordance with the provisions of FAR 21.197 and FAR 21.199 the aircraft may be flown to a base where the disc removals required by this AD may be performed.
NOTE: For the purpose of this AD a flight cycle is considered to be an operating sequence consisting of engine starting, takeoff operation, landing and engine shutdown.
This amendment becomes effectiveSeptember 25, 1978.