What was found
RETURNED TO LCK DUE LOSS OF PRESSURIZATION DUCTING. UNABLE TO HOLD CABIN. FOUND LOOSE DUCT CLAMP ON NR 1 TURBO COMPRESSURE INLET. REINSTALLED AND SAFETIED CLAMP, OPS NORMAL IAW MM 21-10-00.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RETURNED TO LCK DUE LOSS OF PRESSURIZATION DUCTING. UNABLE TO HOLD CABIN. FOUND LOOSE DUCT CLAMP ON NR 1 TURBO COMPRESSURE INLET. REINSTALLED AND SAFETIED CLAMP, OPS NORMAL IAW MM 21-10-00.