AIR COND CTL 1(2)-A(B) FAULT

Air-Conditioning System Controller 1/2 (ACSC)

— RESET PROCEDURE—

!!!DO NOT RESET IN FLIGHT!!!

The PACK 1 and the PACK 2 pushbutton switches are in the off position (the OFF legends are on) and both pack flow-control symbols show closed on the BLEED page.

ACSC1: Pull & Reset: X21, X22, Y18, D08

ACSC2: Pull & Reset: W21, W22, Y20, Y21

Pull CBs for: 2 min

POST: 30 sec

21-63-04 Air Conditioning System Controller Channel (COND CTL 1(2)-A(B)) MMEL

21-61-00-710-001-A Operational Test of the Pack Temperature-Control System

21-61-34 PB 401 Air-Conditioning System Controller replace

TSM 21-61-00-810-898-A AIR COND CTL 1(2)-A(b) FAULT

Read me first

All instructions and limitations given in those documents that relate to the resetting of systems both on the ground and in the air must be respected. No reset should be attempted without a thorough appreciation of the technical ramifications. No more than one computer should be reset at any one time. No reset should be attempted in flight unless specifically permitted by the QRH. Maintenance messages remaining after a reset require engineering investigation.

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