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A B737-700 was found in a maintenance check to have fuselage skin damage from a lightning strike. Repairs made but no lightning strike inspection of entire aircraft accomplished.
| Attributes | |
| ACN | 596498 |
| Time | |
| Date | 200309 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : mem.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 596498 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | other other : 969 |
| Consequence | other other other |
| Factors | |
| Maintenance | contributing factor : work cards performance deficiency : scheduled maintenance performance deficiency : repair performance deficiency : non compliance with legal requirements performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
Incomplete sign off for aircraft log page. Aircraft was in for 'B/C' check on sep/sun/03. Day shops took over on the morning of sep/mon/03. During the inspection, they ('B/C' check) found evidence of a lightning strike. They worked the lightning strikes. Per non routine cards I was told the aircraft also needed a lightning strike inspection which was performed per maintenance manual 05-51-19, which covers the 'whole' airplane. No additional damage was found. I signed off the lightning strike inspection on log page for the 'whole' airplane per 05-51-19. Looking back, I should have made mention of certificate of worthiness since 'B/C' check had repaired lightning damage to the pressurized fuselage skin. I feel if maintenance wants the mechanics to sign off lightning strike inspection per a maintenance number, then one should be written to cover the 'whole' airplane instead of the way certificate of worthiness is written for the 'pressurized fuselage skin.'
Original NASA ASRS Text
Title: A B737-700 WAS FOUND IN A MAINT CHK TO HAVE FUSELAGE SKIN DAMAGE FROM A LIGHTNING STRIKE. REPAIRS MADE BUT NO LIGHTNING STRIKE INSPECTION OF ENTIRE ACFT ACCOMPLISHED.
Narrative: INCOMPLETE SIGN OFF FOR ACFT LOG PAGE. ACFT WAS IN FOR 'B/C' CHK ON SEP/SUN/03. DAY SHOPS TOOK OVER ON THE MORNING OF SEP/MON/03. DURING THE INSPECTION, THEY ('B/C' CHK) FOUND EVIDENCE OF A LIGHTNING STRIKE. THEY WORKED THE LIGHTNING STRIKES. PER NON ROUTINE CARDS I WAS TOLD THE ACFT ALSO NEEDED A LIGHTNING STRIKE INSPECTION WHICH WAS PERFORMED PER MAINT MANUAL 05-51-19, WHICH COVERS THE 'WHOLE' AIRPLANE. NO ADDITIONAL DAMAGE WAS FOUND. I SIGNED OFF THE LIGHTNING STRIKE INSPECTION ON LOG PAGE FOR THE 'WHOLE' AIRPLANE PER 05-51-19. LOOKING BACK, I SHOULD HAVE MADE MENTION OF CERTIFICATE OF WORTHINESS SINCE 'B/C' CHK HAD REPAIRED LIGHTNING DAMAGE TO THE PRESSURIZED FUSELAGE SKIN. I FEEL IF MAINT WANTS THE MECHS TO SIGN OFF LIGHTNING STRIKE INSPECTION PER A MAINT NUMBER, THEN ONE SHOULD BE WRITTEN TO COVER THE 'WHOLE' AIRPLANE INSTEAD OF THE WAY CERTIFICATE OF WORTHINESS IS WRITTEN FOR THE 'PRESSURIZED FUSELAGE SKIN.'
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.