Two cases have come to our attention meriting comment to clear up points of possible confusion:

Quoted correctly, but incorrect nonetheless. The Boeing B747 bombed at Lockerbie, Scotland, was referred to by the National Transportation Safety Board (NTSB) as Pan Am Flight 109 (see ASW, Aug. 1). The correct flight number is 103.

Clearing up, for the record. A CRJ-600 flight instructor offers two points on our coverage of the hearings on the crash of the Pinnacle Air regional jet on a positioning flight:

1. The article says the right side of the cockpit is not equipped with an EFIS, or a primary flight display (see ASW, June 27). The right side does have full redundancy with the left side, under normal operations, he says. However, in the event of a dual engine failure, as occurred in this event, there is no power for the right side displays. Consequently, they are blank, and there is no provision for getting them back until another source of power becomes available (such as an engine or auxiliary power unit).

2. The article says, "The airplane dropped below 21,000 feet, the minimum altitude for a windmilling restart" (see ASW, June 27). Actually, 21,000 feet is the maximum altitude for a windmilling restart. Poor choice of words on our part; we were trying to convey the thought that you must descend to at least 21,000 feet before attempting such a restart.