SDR QXEA200800405

Service difficulty report · Keelbeam · Dhav DHC8202

Difficulty date: April 18, 2008
Submitted: September 10, 2008
Operation: Air carrier
Aircraft: N355PH
Make and model: Dhav DHC8202
Aircraft serial: 500
Aircraft time: 23,775 hours, 34,452 cycles
System (JASC): 5314 · Fuselage Main, Keel
Part: Keelbeam
Condition: Corroded
Location: Fuselage
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

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

What was found

PDX C4 CHECK SUSPECT CORROSION AT I/B BOTTOM OF VERTICAL KEELBEAM AT STA X370 AND STR 31P. REMOVED CORROSION AT BOTTOM OF VERTICAL KEEL BEAM STA 370.8. REF CPM CHAP 4 PG 4-25 PARA 9. ORIGINAL THICKNESS .050" REMAINING THICKNESS .046". MAX MATERIAL REMOVED .004 WITHIN LIMITS REF -8 200 SRM 51-20-11 PARA 3. HFEC INSP. IAW -8 200 NDTM PT6, 51-00-01 NO CRACKS NOTED. ETCHED ALODINE PRIME REF -8 CPM CHAP 5, PARA 2C.