Stage III Technologies, which has been developing a Stage 3 hush kit for Gulfstream IIs and IIIs for more than five years, has received an STC for the Gulfstream IISP (the GII special performance model equipped with winglets). The La Jolla, Calif. company expects by May 1 to have STCs for the entire GII and GIII series. The Stage III system has no moving parts and adds no more than 20 pounds to the aircraft empty weight.
The NTSB has sent an “urgent safety recommendation” asking the FAA to prohibit airlines from using credit for the use of thrust reversers when calculating landing distances. Although the recommendation would prohibit reverser credit on all runways, “its practical effect would be felt on planned landings only on contaminated runways, which is when the credit is included in stopping-distance calculations,” the Safety Board said.
In an effort to save weight and improve reliability, Honeywell has asked its engineers to develop systems that will replace traditional aircraft hydraulic and bleed-air systems with all-electric architecture. The U.S.
Stage III Technologies, which 18 months ago received an STC for its Stage 3 hush kit/cascade thrust reverser for Gulfstream IIs and IIIs, plans to have its long-awaited first installation under way in February at Western Jet in Van Nuys, Calif.
Nordam is featuring the wing tip fences and landing light lenses it started manufacturing for the Airbus A380 in October, plus a Singapore-made CFM56-3 thrust reverser to showcase its local capabilities.
Nordam has signed a five-year agreement with Cathay Pacific Airways to repair and overhaul the airline’s Rolls-Royce Trent 700 engine thrust reversers and pivot doors. The company teamed with the airline to develop the repair capabilities and completed the first units last December.
The NTSB determined that the probable cause of the landing accident involving a Gulfstream IV at Teterboro Airport, N.J., on Dec.
A Falcon 900 (N699BG) owned and operated by Erg Aviation II overran Runway 1 during landing at Greenville Downtown Airport, S.C., on July 17, but was stopped by the Engineered Materials Arresting System (EMAS), preventing possible injuries and damage. The pilot told the NTSB that during the approach the anti-skid system had to be tested twice to produce the correct indication.
After nearly six years of development plagued by delays caused mostly by technical problems, Stage III Technologies of La Jolla, Calif., late last month said it expected to receive certification of its GII and GIII hush kit/thrust reverser combination by the middle of this month. To date, the only certified hush kit for these aircraft is available from Quiet Technology Aerospace.
Until Bombardier develops a fix and it is FAA approved, operators of about 255 U.S.-registered Learjet 23s through 25s will be required to disable the thrust reversers. In a proposed AD, the FAA says it has two reports of the reverser accumulators failing, which also caused loss of hydraulic power. The failures were caused by fatigue cracking, according to the agency.