TransAero Emergency Landing

I’m not an expert but there are aspects to this Lithium Ion battery story which concern me. I completely understand why these planes are grounded as this battery situation is examined, and applaud that solutions are being considered even as I write this. I cannot help but wonder what the actual time-frame will be. When I start wondering, I start asking —and quoting—the experts available to me and my company.

The FAA maintains a database of Service Difficulty Reports (SDR’s) for US Registered airlines. There’s a long ignominious history recorded of fire and smoke events previously examined by the FAA in the unique category that the fires are hidden, i.e. in locations inaccessible or unknown to crew: mundane items the public never heard of–such as the built-in Halon 1301 trash receptacle extinguishers that failed to extinguish trash fires– were found and fixed or replaced. Battery ground cables have been known to arc (Northwest Airlines DC-10, March 1988), insulation blankets to burn (April of 1988, a Continental 737), overheated fluorescent light ballasts smoked (115 incidents way back in 1991).

Here’s an example of why I am concerned:
At least twenty-nine fires have been identified as being ignited by electrical short circuits in/from flammable acoustic blankets. One of these flammable circuit types that was identified back in a 1991 report is permitted in Boeing products until 2016.

When the solution to the battery problem is determined, what time frame will the Airworthiness Directives require? Will compliance be to exchange, replace or modify the battery system or to put it off till later? ADs are issued with overly generous compliance times in years.

Will a temporary measure be taken along with a compliance date set years from now?

Regardless of whether the bottom-line business of aviation is wrestling with the expense of safety, a dicey potential fire starter component is a problem that should be addressed.

If the Dreamliner is going to be in service for the next 40 years, an issue causing a component to cause a fire should not be covered with 40 years of bandaids. It should be fixed now.