ESN 856938 (03172026).pdf
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About this file
This is a CFM56-3 Life Limited Parts List documenting the operational status and remaining service life of critical engine components for a specific aircraft engine (S/N 856938) as of March 17, 2026.
The document tracks 18 life-limited parts across booster, fan, high-pressure compressor (HPC), high-pressure turbine (HPT), and low-pressure turbine (LPT) sections. Each part is identified by item identification number (IIN), description, part number (P/N), and serial number (S/N). The list records total service hours (TSN: 46,689.4) and cycles (CSN: 33,191) accumulated on the engine, along with individual part usage metrics. Cycle limits are established for three operational categories (A, B, and C), with remaining cycles calculated for each. Notable components include the Fan Disk (10,284 remaining cycles in category A) and HPC Spool Stage 4-9 (5,523 remaining cycles in category A), both approaching their service limits. The LPT components generally show higher remaining service life, ranging from 11,547 to 16,547 cycles. The document was prepared by Rob Hankins and is electronically signed, valid without manual signature.
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CFM56-3 Life Limited Parts List
ENGINE S/N: 856938 TSN: 46,689.4 CSN: 33,191
IIN
DESCRIPTION
P/N
S/N
TSN
CSN
OPERATING CYCLES CYCLE LIMITS REMAINING CYCLES REMARKS
A B C A B C A B C
211 BOOSTER SPOOL 335-009-306-0 DC903597 24 432.4 17 820 13 971 0 3 849 30 000 30 000 30 000 12 180 12 180 12 180 213 FAN DISK 335-014-511-0 BC427846 24 432.4 17 820 13 971 0 3 849 30 000 24 900 20 100 10 284 8 535 6 890
221 FAN SHAFT ASSY 335-006-414-0 DC903355 24 432.4 17 820 13 971 0 3 849 30 000 30 000 30 000 12 180 12 180 12 180
312 HPC FRT SHAFT 1275M37P02 GWN0CAEG 15 947.4 13 453 6 510 3 094 3 849 20 000 20 000 20 000 6 547 6 547 6 547 313 HPC SPOOL STG 1 - 2 1589M66G02 GWN0CH4H 15 947.4 13 453 6 510 3 094 3 849 20 000 20 000 20 000 6 547 6 547 6 547 314 HPC DISK STG 3 1590M59P01 XAEG1315 15 947.4 13 453 6 510 3 094 3 849 20 000 20 000 20 000 6 547 6 547 6 547 315 HPC SPOOL STG 4 - 9 1588M89G03 GWN0C4W9 15 947.4 13 453 6 510 3 094 3 849 20 000 20 000 15 800 5 523 5 523 4 363 316 HPC REAR AIR SEAL 1319M25P02 GFF5D7JD 15 947.4 13 453 6 510 3 094 3 849 20 000 18 000 15 000 4 920 4 428 3 690
521 HPT FRONT SHAFT 1385M90P04 XAE78811 15 947.4 13 453 6 510 3 094 3 849 20 000 17 300 17 000 5 384 4 657 4 577 522 HPT FRONT AIR SEAL 1282M72P05 GWN0C6WT 15 947.4 13 453 6 510 3 094 3 849 20 000 15 800 15 100 4 475 3 535 3 379 525 HPT ROTOR DISK 1475M29P03 GWN0CG8R 15 947.4 13 453 6 510 3 094 3 849 20 000 18 500 16 600 5 507 5 094 4 571 526 HPT REAR SHAFT 1864M91P02 TMT2B063 15 947.4 13 453 6 510 3 094 3 849 20 000 20 000 20 000 6 547 6 547 6 547
542 LPT DISK STG 1 301-331-126-0 BC735233 15 947.4 13 453 6 510 3 094 3 849 25 000 25 000 25 000 11 547 11 547 11 547 543 LPT DISK STG 2 301-331-227-0 BC607282 15 947.4 13 453 6 510 3 094 3 849 25 000 25 000 25 000 11 547 11 547 11 547 544 LPT DISK STG 3 301-331-322-0 BC613578 15 947.4 13 453 6 510 3 094 3 849 25 000 25 000 25 000 11 547 11 547 11 547 545 LPT DISK STG 4 301-331-429-0 DD087427 15 947.4 13 453 6 510 3 094 3 849 25 000 25 000 25 000 11 547 11 547 11 547 546 LPT CONICAL SPT 305-056-116-0 BC514124 15 947.4 13 453 6 510 3 094 3 849 25 000 25 000 25 000 11 547 11 547 11 547
551 LPT SHAFT 301-330-067-0 LA138336 15 947.4 13 453 6 510 3 094 3 849 30 000 30 000 30 000 16 547 16 547 16 547 552 LPT STUB SHAFT 301-330-626-0 BC680656 15 947.4 13 453 6 510 3 094 3 849 25 000 25 000 25 000 11 547 11 547 11 547
REMARKS: NAME: Rob Hankins DATE: March 17, 2026
Electronically produced document therefore valid without signature
| 2026-03-17T14:32:29-0500 | |
| ROB HANKINS |
File details come from the government source that posted it. Updated .