Commercial Fixed Wing
Maintenance Airframe; Maintenance Powerplant
Situational Awareness; Troubleshooting
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Other / Unknown
Flight Crew Overcame Equipment Problem; General Maintenance Action
Human Factors
On review of logbook [Logbook Deferral Sheet] item ZZZZZZZZ on Aircraft X noticed item for lost cell phone; sign off unable to locate phone. Being this is a lithium ion battery I went and looked for the phone and did indeed find the phone. Made new entry and signed off accordingly. The company needs to implement a policy to not allow an airplane to leave if a phone or any device with a battery that can cause explosion of self-combustion.
Airline Mechanic reported discovering deferred log item of lost cell phone on board. Mechanic further stated that a company policy which prevents aircraft from operating until cell phone is located.