AIRCRAFT INSPECTIONS LEARNING OBJECTIVE: Define the types of aircraft inspections required for proper maintenance and safety of naval aircraft. Aircraft are subject to a variety of stresses, strains, vibrations, and detrimental environments. If not inspected regularly, the aircraft would soon become inoperable. Maintenance is performed in conjunction with inspections. This enables the aircraft to be flown safely until the next inspection. The types of inspections that are performed by activities responsible for the maintenance of naval aircraft are defined in the following paragraphs. Acceptance inspection. This inspection is performed at the time a reporting custodian accepts a newly assigned aircraft, and upon receipt of or return of an aircraft from standard depot level maintenance (SDLM) or other major depot level work. It includes an inventory of all equipment listed in the Aircraft Inventory Record (AIR), a configuration verification, hydraulic fluid sampling, and a full systems functional check flight (FCF). It also includes an inspection of emergency systems and egress equipment. This should include functionally checking such items as fuel, oil. hydraulic shutoff valves, and prop feathering, as well as the verification of cartridge-actuated devices (CADS) and aircrew escape propulsion systems (AEPSs). In addition, a daily inspection, as required by the applicable Planned Maintenance System (PMS) publication, should also be done. Activities may elect to increase the depth of inspection if the equipment condition indicates such action is warranted. Transfer inspection. This inspection is performed at the time a reporting custodian transfers an aircraft, including transfers to SDLM. It includes an inventory of all equipment listed in the AIR, verification of CADS and AEPS, a configuration verification, hydraulic fluid sampling, and a daily inspection as required by the applicable PMS publication. Activities may elect to increase the depth of inspection if the equipment condition indicates such action is warranted. Daily inspection.    Daily inspections are accomplished between the last flight of the day and the next scheduled flight. The daily inspection is valid for a period of 72 hours, provided no flight occurs during this period and no maintenance other than servicing has been performed. If more than 72 hours elapse between the inspection and the next flight, the inspection must be repeated. This inspection is performed to check equipment that requires a daily verification of satisfactory functioning. It also involves the search for and correction of relatively minor problems to prevent their progressing to a state that would require major work to remedy the problems. Other items that require inspection at intervals more frequent than prescribed for calendar inspections are also included on the daily inspection, and thus are done along with the daily inspection on the day they become due. Conditional inspection. Conditional maintenance requirements are unscheduled events required as the result of a specific overlimit condition, or as a result of circumstances or events that create an administrative requirement for an inspection. A logbook entry is required for a conditional maintenance requirement that prescribes inspections to determine equipment condition; for example, airframe hard landing, precarrier/predeployment, aircraft ferry,   acceptance/transfer, or engine overspeed/overtemp inspections. Those conditional requirements that specify servicing or fluid sampling need not be logged. Preflight inspection. The preflight inspection consists of checking the aircraft for flight readiness by performing visual examinations and operational tests to discover defects and maladjustments that, if not corrected, would cause accidents or aborted missions. This inspection is conducted before each flight to ensure the integrity of the aircraft for flight and to verify proper servicing. It is valid for a period of 24 hours, provided no flight and no maintenance other than servicing occurs during this period. When all preflight requirements are contained within the daily card set, accomplishment of the daily requirements before the first flight of the day satisfies the preflight inspection requirements. When all preflight requirements are not included in the daily card set, the preflight inspection must be performed before flight. The application statement contained on the applicable model weapons system MRC introduction card states specific requirements. Postflight inspection. The postflight inspection is accomplished after each flight or ground operation of the aircraft. The postflight inspection is mainly a check for obvious defects (hydraulic, fuel, and oil leakage or structural damage) and the installation of the necessary safety locks and pins. Turnaround inspection. Turnaround inspections are conducted between flights to ensure the integrity 5-32