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Air carrier light transport aircraft operated without one of the propeller spinner's retaining screws.
| Attributes | |
| ACN | 241562 |
| Time | |
| Date | 199305 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : day |
| State Reference | OH |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other other personnel other |
| Qualification | other other : other |
| ASRS Report | 241562 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
The night before the aircraft had an a check complied with. One of the inspections was on the propeller which involves removing the spinner. When the spinner was reinstalled, the mechanic installed it without the retaining screws. The a check was signed off and the aircraft was released by a lead/rii who also performed a walk around on the aircraft before taxiing it down to remote for departure. The aircraft then flew on designated rtes with various crews doing preflts on the aircraft. When the aircraft came through pit, I performed a service check. According to the service check checklist, which explains word for word what areas and items the mechanic is to inspect, the propeller is to be inspected for damage and blade leakage, not for missing screws. I complied with the service check in accordance with the guidelines set forth by (light transport maintenance) airline operations manual. The aircraft then flew until the night of may/XXX/93 when it terminated in day where it was discovered that the screws were missing by a flight crew training class.
Original NASA ASRS Text
Title: ACR LTT ACFT OPERATED WITHOUT ONE OF THE PROP SPINNER'S RETAINING SCREWS.
Narrative: THE NIGHT BEFORE THE ACFT HAD AN A CHK COMPLIED WITH. ONE OF THE INSPECTIONS WAS ON THE PROP WHICH INVOLVES REMOVING THE SPINNER. WHEN THE SPINNER WAS REINSTALLED, THE MECH INSTALLED IT WITHOUT THE RETAINING SCREWS. THE A CHK WAS SIGNED OFF AND THE ACFT WAS RELEASED BY A LEAD/RII WHO ALSO PERFORMED A WALK AROUND ON THE ACFT BEFORE TAXIING IT DOWN TO REMOTE FOR DEP. THE ACFT THEN FLEW ON DESIGNATED RTES WITH VARIOUS CREWS DOING PREFLTS ON THE ACFT. WHEN THE ACFT CAME THROUGH PIT, I PERFORMED A SVC CHK. ACCORDING TO THE SVC CHK CHKLIST, WHICH EXPLAINS WORD FOR WORD WHAT AREAS AND ITEMS THE MECH IS TO INSPECT, THE PROP IS TO BE INSPECTED FOR DAMAGE AND BLADE LEAKAGE, NOT FOR MISSING SCREWS. I COMPLIED WITH THE SVC CHK IN ACCORDANCE WITH THE GUIDELINES SET FORTH BY (LTT MAINT) AIRLINE OPS MANUAL. THE ACFT THEN FLEW UNTIL THE NIGHT OF MAY/XXX/93 WHEN IT TERMINATED IN DAY WHERE IT WAS DISCOVERED THAT THE SCREWS WERE MISSING BY A FLC TRAINING CLASS.
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.