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AD/F50/90 - Escape Ropes
Fokker F50 (F27 Mk 50) Series AeroplanesFokker F50 (F27 Mk 50) Series Aeroplanes
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Fokker F50 (F27 Mk 50) Series Aeroplanes
| AD/F50/90 | Escape Ropes | 5/2005 |
|---|
| Applicability: | All Model F27 Mk 050, Mk 0502, and Mk 0604 aircraft. |
|---|---|
| Requirement: | 1. Replace affected escape ropes with serviceable parts in accordance with the Accomplishment Instructions of Fokker Services Service Bulletin F50-25-059, dated 28 June 2004, or later CAA-NL approved revision (for flight deck escape ropes); or Service Bulletin TASBF50-25-903, dated 4 October 2004, or later CAA-NL approved revision (for cabin escape ropes, only present in some special mission aircraft configurations).2. Amend the aircraft’s Maintenance Schedule to include a new discard task for the escape ropes after each 6 years time in service.Note: CAA-NL AD 2004-159 refers. |
| Compliance: | For Requirements 1 and 2: Within one calendar year after 12 May 2005. |
| This Airworthiness Directive becomes effective on 12 May 2005. | |
| Background: | Reports have been received from operators of small cracks evident in the polyester block into which the cotton flight deck escape rope is cast. A repair was subsequently carried out and a tensile test was performed. The results established that these ropes had deteriorated over time and their load-bearing capability had been considerably reduced. This condition, if not corrected, could lead to escape ropes failing or becoming unusable during an emergency evacuation. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
31 March 2005