Summary of Safety Action Taken in Response to TSB SR 111 Investigation Safety Communications
| No. | Released | Type (TSB file number) | Title (A98H0003 Section 4.1 reference) | NTSB | TC | FAA | Boeing | Swissair | Additional |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 22-Dec-98 | Aviation Safety Advisory (980031-1) | MD-11 Wiring (4.1.1) | issued recommendation to FAA | nil |
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| Swiss FOCA reviewed and reissued FAA ADs as Swiss Ads Swiss AAIB concurs with TSB Advisory Letter |
| 2 | 09-Mar-99 | Aviation Safety Recommendations (A99-01 thru A99-04) | Flight Recorder Duration and Power Supply (4.1.2) | issued similar recommendations to FAA |
| drafting NPRMs in line with NTSB recs | published SB to power MD-11 recorders on separate buses | intends to comply with recorder SB | Swiss AAIB concurs with TSB recommendations |
| 3 | 11-Aug-99 | Aviation Safety Recommendations (A99-07 & A99-08) | Thermal Acoustic Insulation Materials (4.1.3) | concur with TSB recommendations |
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| providing engineering support to operators for AD compliance |
| Swiss FOCA reviewed and reissued FAA AD as Swiss AD Swiss AAIB concurs with TSB recommendations |
| 4 | 03-Mar-00 | Aviation Safety Advisory (A000008-1) | MD-11 Flight Crew Reading Light (Map Light) (4.1.4) | forwarded TSB letter to FAA for action | nil | Issued ADs to incorporate Boeing ASB |
| complied with FAA ADs | Swiss FOCA reviewed and reissued FAA ADs as Swiss Ads FCRL manufacturer (Hella Aerospace) redesigned FCRL and issued SB Swiss AAIB concurs with TSB Advisory Letter |
| 5 | 04-Dec-00 | Aviation Safety Recommendations (A00-16 thru A00-20) | In-Flight Firefighting (4.1.5) | concur with TSB recommendations | concur with TSB recs, working to harmonize regulations with FAA/JAA |
| Conducted in-depth review of existing designs and in-flight firefighting procedures | instituted "MD-11 Modification Plus" program which improved in-flight firefighting checklists, procedures, training, incorporated improved detection and suppression systems, replaced some materials with more heat tolerant materials | UK CAA taking active measures Swiss AAIB concurs with TSB recommendations UK AAIB concurs with TSB recommendations |
| 6 | 29-Dec-00 | Aviation Safety Information Letter (A000061-1) | Flight Crew Reading Light (4.1.4) | agreed with the TSB, encouraged the FAA to take appropriate action | nil | issued AD mandating recurring inspections which will remain in force until the unsafe condition has been eliminated | in cooperation with Hella Aerospace, a redesigned maplight has been developed to address the unsafe condition raised in the FAA's AD | incorporated Hella's SB which improves the maplight's short-circuit protection | Swiss FOCA reviewed and reissued FAA AD as a Swiss AD Hella Aerospace, the maplight manufacturer, worked with Boeing on maplight redesign |
| 7 | 29-Dec-00 | Aviation Safety Information Letters (A000062-1, -2) | MD-11 Overhead Aisle and Emergency Lights (4.1.6) | nil | nil | reviewed MD-11 Overhead Aisle and Emergency Lights installation and determined that no unsafe condition existed | Boeing determined that the fixture met existing certification standards | nil | |
| 8 | 01-Aug-01 | Aviation Safety Advisory (A010020-1) | Air Traffic Controller Training (4.1.11) | nil | Liaised with ATS service providers to ensure TSB's concerns are addressed | nil | nil | nil | Nav Canada has revised Air Traffic Controller training and amended its Air Traffic Control Manual of Operations accordingly |
| No. | Released | Type (TSB file number) | Title (A98H0003 Section 4.1 reference) | NTSB | TC | FAA | Boeing | Swissair | Additional |
| 9 | 28-Aug-01 | Aviation Safety Recommendations (A01-02 thru A01-04) | Material Flammability Standards (4.1.10) | concur with TSB recommendations | concur with TSB recs, working to harmonize regulations with FAA/JAA |
| Boeing issued SB to inform MD-11 operators of an FAA-approved modification procedure that uses steel vice aluminum components in the crew oxygen system as a fire-hardening measure. | incorporated SB replacing aluminium components as part of its .MD-11 Modification Plus. program | |
| 10 | 28-Sep-01 | Aviation Safety Advisory (A010042-1, -2) | Standby Instrumentation (4.1.9) | nil | nil | will address TSB's emergency instrumentation issues at its Aviation Rulemaking Advisory Committee | reviewed their current standby instrumentation equipment to identify any areas that could be optimized | As part of its .MD-11 Modification Plus. program, installed a secondary flight display system with a layout similar to the primary flight display in the MD-11 aircraft which also incorporates an auxiliary battery | |
| 11 | N/A | N/A | In-Flight Entertainment/ Supplemental Type Certificate (4.1.7) | nil | nil | conducted an SCR of STC ST00236LA-D resulting in the withdrawal of its IFEN certification. Additionally, the FAA has acted to enhance its STC process. | conducted a design review of its installations to confirm that no unsafe conditions existed. | disabled then removed the IFEN systems in both its MD-11 and Boeing 747 fleets | FOCA cancelled validations of the IFEN STCs |
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| 12 | N/A | N/A | Circuit Breaker Reset Philosophy (4.1.8) | nil | published an article in the its Aviation Safety Letter | issued a Joint Flight Standards Information Bulletin which summarizes the FAA.s position on the issue of resetting tripped CBs | states that no CB reset is allowed in-flight except under emergency conditions as duly authorized by the pilot-in-command. Additionally, it stipulates that no CB resets associated with fuel pump circuits were to be carried out under any circumstances. |
| Airbus issued a CB reset policy which only allows a CB reset in flight under emergency conditions when authorized by the pilot-in-command. |
| Legend | |
|---|---|
| AD | Airworthiness Directive |
| AOM | Aircraft Operations Manual |
| ASB | Alert Service Bulletin |
| Boeing | The Boeing Company |
| CARAC | Canadian Aviation Regulation Advisory Council |
| CB | circuit breaker |
| FAA | United States Federal Aviation Administration |
| FCRL | Flight Crew Reading Light |
| FOCA | Swiss Federal Office for Civil Aviation |
| Hella | Hella Aerospace GmbH |
| JAA | Joint Aviation Authorities |
| MPET | metallized polyethylene terephthalate |
| NPA | Notice of Proposed Amendment |
| NPRM | Notice of Proposed Rulemaking |
| NTSB | United States National transportation Safety Board |
| SB | service bulletin |
| SCR | Special Certification Review |
| Swissair | Swiss Air Transport Company Limited |
| Swiss AAIB | Swiss Aircraft Accident Investigation Bureau |
| TC | Transport Canada |
| TSB | Transportation Safety Board of Canada |
| UK AAIB | United Kingdom Air Accidents Investigation Branch |
| UK CAA | United Kingdom Civil Aviation Authority |