Section VI PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

TM 55-2835-209-23 Section VI PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) 1-23 GENERAL DESCRIPTION This section contains requirements for special inspections and standards of serviceability applicable to the APU and PMCS. The tasks listed in the PMCS table shall be performed at the inter- vals specified. A description of the PMCS table is given in paragraph 1-27. 1-24 DROPPED ENGINE INSPECTION Technical Inspector shall perform over- all inspection of APU if it was dropped. Check for any broken, bent or kinked tube assemblies, cracked air inlet, dented combustor case, damaged APU har- ness assembly/connectors, damaged fuel manifold assembly and other damage. Refer to DA PAM 738-751 for applicable forms, records and worksheets. 1-25 FOREIGN OBJECT DAMAGE (FOD) IN- SPECTION Inspect APU components during detailed applicable tasks. 1-26 HOT END INSPECTION Inspect hot end components (combustor case, liner, etc) in accordance with the detailed inspection tasks of Chapter 1. 1-26.1 DESCRIPTION OF PMCS TABLE a. Step number column. This column shall be used as a source of item numbers for the TM Number Column on DA Form 2404, Equipment b. c. d. e. Inspection and Maintenance Worksheet, in recording re- sults of PMCS. Interval column. This col- umn defines the interval, in hours of APU operation, that all tasks shall be per- formed. The helicopter log shall be used to determine hours of APU operation. Item to be inspected column. This column describes the item to be inspected (or serviced). Task column. This column assigns responsibility for performing each task to ei- ther AVUM or AVIM. An "X" indicates that a description of the task is provided in the REMARKS column. A task number indicates a de- scription of the task is given in that procedure. Remarks column. This column provided supplementary in- formation relating to the interval of performing cer- tain tasks. In addition, when an "X" is indicated in the TASK column, a de- scription of the task is given in the REMARKS column. 1-26.2 PREVENTIVE MAINTENANCE CHECKS AND SERVICES Following are the preventive maintenance checks and services used for scheduled maintenance of the APU. 1-20 Change 1