SDR USAASB01142

Service difficulty report · Static Line · Boeing 737301

Difficulty date: May 20, 2001
Submitted: June 20, 2001
Operation: Air carrier
Aircraft: N577US
Make and model: Boeing 737301
Aircraft serial: 23742
System (JASC): 3400 · Navigation System
Part: Static Line
Condition: Leaking
Location: E/E Nose Compt
Stage of operation: CR
Nature of condition: O
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DCA - FLT 556 - EN ROUTE FROM DCA TO MHT, AT FL200, THE F/O'S ALTIMETER WAS READING 500 FT LOW AT 19,500 FEET. DUE TO PREVIOUS PROBLEMS AND LACK OF MX IN MHT, FLIGHT RETURNED TO FIELD AT DCA. FLIGHT LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MX REMOVED AND REPLACED THE F/O'S PITOT TUBE (P/N 0856AE18) WITH NO HELP. FOUND STATIC LINE LEADING TO FIRST OFFICERS PITOT STATIC TUBE LEAKING. REPLACED LINE. SYSTEM OPS CHECK AND LEAK CHECK GOOD. (M)