Inspection of maintenance records of FBO revealed some overruns on 100 inspections.

Attributes
ACN	161779
Time
Date	199011
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : 1v5
State Reference	CO
Altitude	agl bound lower : 0 agl bound upper : 0
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft
Flight Plan	None
Person 1
Affiliation	Other
Function	other personnel
Qualification	other other : other pilot : atp pilot : cfi
Experience	flight time last 90 days : 50 flight time total : 4800
ASRS Report	161779
Person 2
Affiliation	government : faa
Function	observation : air carrier inspector
Qualification	other other : other
Events
Anomaly	aircraft equipment problem : less severe non adherence : far
Independent Detector	other other : unspecified
Resolutory Action	other
Consequence	faa : investigated
Supplementary
Air Traffic Incident	other

Narrative:

Upon routine inspection by FSDO maintenance inspectors, several flight school aircraft overflew 100 hour inspection requirements from less than 1 to 9 hours over required times. Flight instruction for hire was terminated at the expiration of 100 hour inspection; however, aircraft were allowed to be rented until 100 hour inspections could be performed. Because ad compliance had been coordinated with the 100 hour inspections of these aircraft, it was determined that several recurring ad's were not in compliance due to the overfly of the 100 hour period between ad compliance requirements. We feel that we are operating within the confines of the far's by not giving instruction for hire if an aircraft 100 hour inspection has expired, and may continue to rent these aircraft until the maintenance can be performed. To prevent an overfly of ad compliance from occurring again, we will comply with all recurring ads every 50 hour inspection, or as required by the text of the ad. We hope that this will always give us a 50 hour cushion on ad compliance if the 100 hour inspections expire. No accidents or incidents have occurred as a result of this finding. A separate ad record for each aircraft sill be maintained and checked for compliance each 50 hours of aircraft operation, and other compliance requirements will be met as per ad text.

Original NASA ASRS Text

Title: INSPECTION OF MAINTENANCE RECORDS OF FBO REVEALED SOME OVERRUNS ON 100 INSPECTIONS.

Narrative: UPON ROUTINE INSPECTION BY FSDO MAINT INSPECTORS, SEVERAL FLT SCHOOL ACFT OVERFLEW 100 HR INSPECTION REQUIREMENTS FROM LESS THAN 1 TO 9 HRS OVER REQUIRED TIMES. FLT INSTRUCTION FOR HIRE WAS TERMINATED AT THE EXPIRATION OF 100 HR INSPECTION; HOWEVER, ACFT WERE ALLOWED TO BE RENTED UNTIL 100 HR INSPECTIONS COULD BE PERFORMED. BECAUSE AD COMPLIANCE HAD BEEN COORDINATED WITH THE 100 HR INSPECTIONS OF THESE ACFT, IT WAS DETERMINED THAT SEVERAL RECURRING AD'S WERE NOT IN COMPLIANCE DUE TO THE OVERFLY OF THE 100 HR PERIOD BTWN AD COMPLIANCE REQUIREMENTS. WE FEEL THAT WE ARE OPERATING WITHIN THE CONFINES OF THE FAR'S BY NOT GIVING INSTRUCTION FOR HIRE IF AN ACFT 100 HR INSPECTION HAS EXPIRED, AND MAY CONTINUE TO RENT THESE ACFT UNTIL THE MAINT CAN BE PERFORMED. TO PREVENT AN OVERFLY OF AD COMPLIANCE FROM OCCURRING AGAIN, WE WILL COMPLY WITH ALL RECURRING ADS EVERY 50 HR INSPECTION, OR AS REQUIRED BY THE TEXT OF THE AD. WE HOPE THAT THIS WILL ALWAYS GIVE US A 50 HR CUSHION ON AD COMPLIANCE IF THE 100 HR INSPECTIONS EXPIRE. NO ACCIDENTS OR INCIDENTS HAVE OCCURRED AS A RESULT OF THIS FINDING. A SEPARATE AD RECORD FOR EACH ACFT SILL BE MAINTAINED AND CHKED FOR COMPLIANCE EACH 50 HRS OF ACFT OPERATION, AND OTHER COMPLIANCE REQUIREMENTS WILL BE MET AS PER AD TEXT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.