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An saab 340B was dispatched in non compliance with an airworthiness directive by using a trailing edge flap robbed from another saab 340B.
| Attributes | |
| ACN | 433111 |
| Time | |
| Date | 199904 |
| Day | Tue |
| 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 | |
| Operator | common carrier : air carrier |
| Make Model Name | SF 340B |
| Operating Under FAR Part | Part 135 |
| Flight Phase | ground : maintenance ground : parked |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance lead technician : 4 maintenance supervisor : 8 maintenance technician : 8 |
| ASRS Report | 433111 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 12 |
| ASRS Report | 433112 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far |
| Independent Detector | other other : mech 2 |
| Resolutory Action | aircraft : automation overrode flight crew none taken : detected after the fact |
| Consequence | faa : assigned or threatened penalties other |
| Factors | |
| Maintenance | contributing factor : non availability of parts contributing factor : manuals contributing factor : engineering procedure contributing factor : work cards performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Chart Or Publication Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
| Situations | |
| Publication | Saab 340 Maint Manual |
Narrative:
On the night of apr/xa/99, I received a call from work. We had an airplane that had been grounded for a flap repair. The suggestion was made by the supervisor on duty to swap flaps from xyz to zxz. I told him I thought this was a good idea. On the morning of apr/xb/99, the installation of the r-hand flap on aircraft was completed. The aircraft maintenance manual and illustrated parts catalog was used as reference for the installation. After installation, the aircraft departed ZZZ for dfw. Upon landing, the aircraft was grounded for the flap. Airworthiness directive 99-04-17 had a statement that said you cannot take an unmodified flap from one aircraft and put on another. We did not know that there was an airworthiness directive against the flaps. We referenced our engineering order G1-5700-066r4, and it does not state that there is any airworthiness directive against the flap. The illustrated parts catalog and aircraft maintenance manual do not reference any restrs of flaps by serial number, or aircraft. Illustrated parts catalog reference used was 57-20-00-1 and aircraft maintenance manual 27-51-30. Flap installation illustrated parts catalog used was 27-50-00-5. The company computer system (dash) was also referenced to check times on the components. The dash did not have any restrs on it either. Summary: with the technical data that was available to us, aircraft maintenance manual, illustrated parts catalog, engineering orders, and dash, there was no way for us to know that there was an airworthiness directive against this component, and a restr on the changing of such. We do not have access to airworthiness directives at this location. We should not be held responsible for our engineering department not updating the company pubs (engineering orders, engineering technical notices, training bulletins, etc).
Original NASA ASRS Text
Title: AN SAAB 340B WAS DISPATCHED IN NON COMPLIANCE WITH AN AIRWORTHINESS DIRECTIVE BY USING A TRAILING EDGE FLAP ROBBED FROM ANOTHER SAAB 340B.
Narrative: ON THE NIGHT OF APR/XA/99, I RECEIVED A CALL FROM WORK. WE HAD AN AIRPLANE THAT HAD BEEN GNDED FOR A FLAP REPAIR. THE SUGGESTION WAS MADE BY THE SUPVR ON DUTY TO SWAP FLAPS FROM XYZ TO ZXZ. I TOLD HIM I THOUGHT THIS WAS A GOOD IDEA. ON THE MORNING OF APR/XB/99, THE INSTALLATION OF THE R-HAND FLAP ON ACFT WAS COMPLETED. THE ACFT MAINT MANUAL AND ILLUSTRATED PARTS CATALOG WAS USED AS REF FOR THE INSTALLATION. AFTER INSTALLATION, THE ACFT DEPARTED ZZZ FOR DFW. UPON LNDG, THE ACFT WAS GNDED FOR THE FLAP. AIRWORTHINESS DIRECTIVE 99-04-17 HAD A STATEMENT THAT SAID YOU CANNOT TAKE AN UNMODIFIED FLAP FROM ONE ACFT AND PUT ON ANOTHER. WE DID NOT KNOW THAT THERE WAS AN AIRWORTHINESS DIRECTIVE AGAINST THE FLAPS. WE REFED OUR ENGINEERING ORDER G1-5700-066R4, AND IT DOES NOT STATE THAT THERE IS ANY AIRWORTHINESS DIRECTIVE AGAINST THE FLAP. THE ILLUSTRATED PARTS CATALOG AND ACFT MAINT MANUAL DO NOT REF ANY RESTRS OF FLAPS BY SERIAL NUMBER, OR ACFT. ILLUSTRATED PARTS CATALOG REF USED WAS 57-20-00-1 AND ACFT MAINT MANUAL 27-51-30. FLAP INSTALLATION ILLUSTRATED PARTS CATALOG USED WAS 27-50-00-5. THE COMPANY COMPUTER SYS (DASH) WAS ALSO REFED TO CHK TIMES ON THE COMPONENTS. THE DASH DID NOT HAVE ANY RESTRS ON IT EITHER. SUMMARY: WITH THE TECHNICAL DATA THAT WAS AVAILABLE TO US, ACFT MAINT MANUAL, ILLUSTRATED PARTS CATALOG, ENGINEERING ORDERS, AND DASH, THERE WAS NO WAY FOR US TO KNOW THAT THERE WAS AN AIRWORTHINESS DIRECTIVE AGAINST THIS COMPONENT, AND A RESTR ON THE CHANGING OF SUCH. WE DO NOT HAVE ACCESS TO AIRWORTHINESS DIRECTIVES AT THIS LOCATION. WE SHOULD NOT BE HELD RESPONSIBLE FOR OUR ENGINEERING DEPT NOT UPDATING THE COMPANY PUBS (ENGINEERING ORDERS, ENGINEERING TECHNICAL NOTICES, TRAINING BULLETINS, ETC).
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.