### 14910-13-UI DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14CFR Pari 39 

## IDocket No. FAA-2008-0556; Directorate Identifier 2007-NM-028-AD; Amendme 

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# 9-DIO-Ol-O-,- RIN 212Q-AA64 Airworthiness Directives; Various Aircraft Equipped With Honeywell Primus n RNZ-850( )/-851( ) Integrated Navigation Units AGENCY: Federal Aviation Administration (FAA), Department ofTransportation (DOT). ACTION: Final rule. SUMMARY: The FAA is superseding an existing ai.rworthiness directive (AD) that applies to various aircraft equipped with certain HoncY'vell Primus II RNZ-8500/-851 ( OunN~ SYMilOl 

### integrated navigation units (INUs). The existing AD, as one aliemative forcompliance, INl1'lALS'SIG 

### provides [or aone-time inspection to detem,ine whether acertain modification has beel '>Al'E 

### installed on the Honeywell Primus IINV-850 navigation receiver module (NRM), whic

# ~""""- ispart of the INU. In lieu ofaccomplishing this inspection, and for aircraft found to hav RQUTIN~S\·M'''''. INITIAL£""(; ATE t.JTINGS"MOOL 

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### " applicability to include additional affected !NUs. This AD results from reports indicati compliance time for acertain inspection and associated actions. This AD also revises t and doing related investigative, corrective, and other specified actions, as applicable; a

that erroneous localizer and glideslope indications havc occurred on certain aircraft inspection to determine whether certain other modifications have been done on the NR limitations forinstrument landing system approaches. That AD also requires an an affected NRM, that AD provides for revising the aircraft flight manual to include ne

well as further modifications to address additional anomalies. This AD extends the
equipped with the subject TI\TUs. We are issuing this AD to ensure that the Oightcrew has

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149IO-13-U] 

# .~ DEPARTMENT OF TRANSPORTATION Federal Avhition Adrillilistra(ion 

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# ,RNZ-85:D( )/-851 (}Integrated'~avigatio9cJJnits"' , ~7." AGJ):NCY; Federal Avi21ion Adrilinisir3!-ion'(EAA), pepartni~t.o't:Transportation 

### :0:' A:C:rJON: Final rule.

- SUl\11\'lARY: The:FAAjs superseding_an exiSting ainvorthiness directive (AD) that

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# ~- integrat~ navigationunits (INUs). TlteeXistingAD", asone al(emative forcompliancc~ 

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## fou!l~ tohav.~~ /',' , ~<, ,t.' ,:;,i' i'o ,Yo ':" "' .. " '? an affeCted NRM, that AD proVides":'Iorrevising the aircr~ftJ1i:ghl manual to inilud~~lew - 

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## . .'-. _<..i -, an~doing related investigative, cOJTec.tive,andother specified actions. as appli~ablc; as 

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## '"'-,-. compli~cetime foracert.ain inspectionanQ.,,-~Ci~ed aCtio~ This~

Walso re.yjs¢~tqe 'aj5pI1cabilitr;;,~6,i'I1ClL.id~ 

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# 'q:9rn repo.rts indicating..o ,_, ,'- • ,/0' ,;\, -,a ';"'- ¥ ."',- ",J -J/•. I. , th;t-errooeaus localizer and g!i9es1opejndications-liave QccufJed-on certain aircraft 

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# "rimthe subNct !NUs. W~ arej~;:s4ing ih:iS'AD-to ensure 

### that tbe'fliUit crew has , ,. .: ~, "'v::ry:, 

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## 14910-I3-U] 

### DEI'ARTMENT OFTRAi"SI'ORTAnON Federal Aviation Administration 

### 14CFR I'art 39 (Docket No. FAA-2008-0556; Directorate Identifier 2001-NM-028-AD; Amendment 39-**; AD 

## **1 RJN 2120-.'1..'1.64 Airn'ortbincss DirectivC5; Various Aircraft Equipped With Honeywell Primus II RNZ-850( )/-851() Integrated Navigation Units ACENCY: Federal Aviation Administration (FAA), Department ofTransportation (DOT). ACTION: Final rule. SUMMARY: The FAA is superseding an existing airworthiness directive (AD) that applies to certain Honeywell Primus 

## n RNZ-8500J-851

## 0 integrated navigation units (INUs). As onc alternative for compliance, the existing AD provides for a onc-time inspection to determine whether acertain modification bas been installed on the Honeywell Primus 11NY-850 navigation receiver module (NRM), which is pari of the INU, In lieu ofaceomplbhing this inspection, and lor aircraft found to have an affected NRM, that AD provides for revising tbe aircraft flight manual to include new limitations for instrument landing system approaches. That AD also requires an inspection to determine whether certain other modifications have been done on the NRM; and doing related investigative, corrective, and other specified actions, as applicable; as well as further modifications to address additional anomalies. 1l1is AD extends the compliance time for a certain inspection and associated actions. This AD also revises the applicability to include additional aflectcd lNUs. This AD results fTOm reports indicating that erroneous localizer and glideslopc indications have occurred on cenain aircraft equipped with the subjccllNUs. We are issuing this AD to ensure that the flightcrew has accurate 

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